Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
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the words “oversight” and “surveillance” have similar meanings. compare…
A. A stronger connotation
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finding relative frequency a number cube is rolled 60 times. the result…
For \( A \): \(\frac{1}{5}\) (or \( 0.2 \)) For \( B \): \(\frac{2}{15}\) (or approximately \( 0.133 \))
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3. the hold time experienced by people calling a government agency was …
$4.3\%$
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predicting the outcome of an experiment emma conducted an experiment in…
50
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a six - sided, fair number cube is rolled 100 times as part of an exper…
The correct statement (assuming the frequency of rolling a 3 is 20, as it's a common setup with 100 rolls and 1/5 experimental probability: \( \frac{20}{100}=\frac{1}{5} \)) is: "…
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a number cube is rolled 100 times as part of an experiment. which state…
To solve this, we analyze theoretical and experimental probability for rolling a 3 on a number cube: ### Step 1: Theoretical Probability A standard number cube has 6 faces (number…
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during samuel’s experiment, the experimental probability was 0.25. what…
The experimental probability of the outcome is $\frac{1}{4}$. (Assuming the options are: A. The experimental probability of the outcome is $\frac{1}{4}$. B. The experiment has fou…
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2. if one quart bottles of apple juice have weights that are normally d…
2.28%
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mali performed an experiment with a standard deck of 52 cards. she want…
A. increase the number of trials
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jamal performed an experiment flipping a coin. he did 10 trials and the…
He did not perform enough trials to compare the theoretical and experimental probabilities.
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which of the following statements is true? the indian appropriations ac…
B. The Indian Appropriations Act of 1871 meant that tribes were no longer classified as independent nations.
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90-day forecast weather type | predicted frequency | observed frequency…
First, we need to calculate the experimental probability of rain. The total number of days is \(9 + 18 + 27 + 36=90\) (from the predicted frequencies, we can also check with obser…
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the weather forecast for next season calls for a 10% chance of wind, a …
Wind: 9 days, Rain: 18 days, Cloudiness: 27 days, Sunshine: 36 days
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a country with one of the highest population densities is malta, where …
1392 To compare, Malta's population density (1392 people per square kilometer) is much higher than the United States' population density (36 people per square kilometer), meaning …
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3. the table shows ms. kayla’s ged® students’ results from a keyboardin…
The difference in words per minute between the fastest - and the slowest - typing students is \( \boldsymbol{15.5} \) wpm.
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use the interactive spinner to simulate who among elisondra and her thr…
To find the experimental probability of Sarah ordering first, we use the formula for experimental probability: \( P(\text{Sarah})=\frac{\text{Observed frequency of Sarah ordering …
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what could be predicted if elisondra and her friends use the spinner to…
B. Elisondra will order first approximately 10 times. E. Each person will order first approximately the same number of times.
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question 12 (multiple choice worth 2 points) programs and use pns mc th…
The data is bimodal with an approximate range of 12. The most frequent number of activities was either 10 or 22, which might mean that the activities vary in each school.
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question 11 (multiple choice worth 2 points) (effects of changes in dat…
The value of the mean would remain the same at about 44. (Option: The value of the mean would remain the same at about 44)
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use the interactive spinner to model who among elsondra and her three f…
$\frac{1}{4}$
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lloyda is eating at a restaurant with three friends. they want to choos…
4 (Wait, correction: To choose among 4 people (Lleovdcha + 3 friends = 4), the spinner should have 4 equal - sized sections. But let's re - evaluate the problem. If it's Lleovdcha…
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tested 1000 calculators to see if any were defective. the company claim…
10
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caleb performed an experiment in which he rolled a number cube 100 time…
0.14
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identifying theoretical probability complete each sentence to make a tr…
$\frac{1}{6}$
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a bag contains 8 pieces of paper, each with one of these letters writte…
1. Impossible: The letter drawn is a P 2. Likely: The letter drawn is a consonant 3. Unlikely: The letter drawn is one of the first ten letters of the alphabet 4. Certain: The let…
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tia performed an experiment where she flipped a coin 200 times. the coi…
The ratio $\frac{92}{200}$ represents the experimental probability of the coin landing heads up in this experiment. (Assuming the first option's ratio numerator is a typo and the …
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during an experiment, juan rolled a six - sided number cube 18 times. t…
Juan's claim is incorrect. The correct experimental probability is $\frac{4}{18}=\frac{2}{9}$ (Wait, no, wait: Wait, the number of trials is 18, and the number of times two occurr…
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shana lives in a town with a population of 130,000. standing outside th…
There should be 17,225 cat owners in town.
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a number cube was rolled as part of an experiment. the results are disp…
The best explanation is: "To find the experimental probability of rolling a three, write a ratio of the number of times three occurs to the total number of trials. Simplify if nec…
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the results of a color spinner experiment are shown in the table. consi…
6
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during an experiment, a spinner landed on green 9 times, which resulted…
Mary multiplied the 9 occurrences by 6 instead of 5.
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lonnie threw 50 free throws and missed 16 of them. if lonnie throws 75 …
Lonnie will make 51 free throws.
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during an experiment, a spinner landed on red 6 times. if the resulting…
36 (Wait, but the options given are 6, 8, 24, 48. Wait, maybe I misread. Wait, the problem: A spinner landed on red 6 times. The experimental probability of landing on red is $\fr…
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marcus performed an experiment by spinning a spinner a set number of ti…
$\frac{3}{18}$
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melanie and three of her classmates worked as a team to find the experi…
Juanita
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before a new video game is released, it is tested by a number of volunt…
2000
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to find the experimental probability of a spinner landing on green. lat…
Liam
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packaging problems | frequency box printing error | 5 underweight box |…
200
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the results of a blind taste test experiment are shown in the table. th…
$\frac{3}{25}$
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bryanna performed an experiment in which she flipped a coin and recorde…
To solve this, we analyze each statement about experimental probability (where Bryanna flipped a coin: heads = 23, tails = 27, total trials = 23 + 27 = 50): ### Step 1: Analyze "T…
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a computer manufacturer is performing a quality check to make sure the …
$0.004$ or $\frac{1}{250}$
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alisha conducted an experiment in which a spinner landed on green 7 tim…
35
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select spin to start the spinner. perform an experiment with 50 trials.…
\( \frac{2}{17} \) (or approximately \( 0.1176 \) if a decimal is preferred)
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select spin to start the spinner. perform an experiment with 50 trials.…
To determine the experimental probability of the spinner landing on red after 50 trials, we follow these steps: ### Step 1: Understand Experimental Probability Experimental probab…
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a number cube was rolled as part of an experiment. the results are show…
To find the experimental probability of rolling a 6, follow these steps: ## Step 1: Find the total number of trials First, sum up all the frequencies. The frequencies are 13 (for …
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tia performed an experiment in which she flipped a coin 100 times. the …
First blank: number of trials Second blank: relative frequency
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the experimental probability of getting a 3 on a number cube is 5/36. w…
The number 3 was rolled 5 times in 36 trials.
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analyze the table representing five experiments with an increasing numb…
With more trials, the frequency of heads up will equal the frequency of tails up.
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davis performed an experiment in which he spun a 4 - color spinner 20 t…
No. The frequencies and probabilities for red and green segments might change in the next experiment.
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spin to start the spinner. spinner 7 times. which color has the highest…
Suppose Orange has the highest frequency (e.g., 3 times), experimental probability = $\frac{3}{7}$. (Actual answer depends on spin results.)
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mason practiced basketball free throws and kept track of the results in…
Mason compared the number of free throws made to the number of free throws missed.
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flip the coin to find the probability of each event in the table. flip …
To solve this, we first note the initial trials (0 heads, 0 tails) and then consider the additional 4 flips. Let's assume we get \( h \) heads in the 4 flips. The total trials bec…
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which statements about experimental probability are true? experimental …
The true statements are: - Experimental probability is written as a ratio. - Experimental probability is found by conducting trials of an experiment. - Experimental probability in…
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matching theoretical probability match the scenario to the probability …
1. Spinning blue on a spinner with four different colors in four equal parts: $\boldsymbol{\frac{1}{4}}$ 2. Pulling a white marble from a bag of 2 white marbles and 4 red marbles:…
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the spinner is divided into 8 equal sections. which two events have the…
First, let's analyze the spinner divided into 8 equal sections. Let's count the number of each color: - Yellow: 1 section - Blue: 1 section - Gray: 2 sections - Green: 2 sections …
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margaret is playing a game with a standard deck of 52 cards which conta…
$\frac{1}{13}$
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jenny has a number cube that is numbered from 1 to 6. she rolls the cub…
$\boldsymbol{\text{P(number greater than 4)}=\frac{2}{6}(50)}$ (or the option with this expression, assuming the options are labeled, e.g., if this is option C, then "C. $\text{P(…
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a shirt rack contains 5 striped shirts, 8 solid shirts, and 6 polka dot…
19
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kevin has a spinner that has 10 equal sections and 2 sections of each c…
about 72 times
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maria has an 8-sided die that is numbered from 1 to 8. she rolls the di…
about 12 times
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which event has theoretical probability of exactly \\(\\frac{1}{5}\\)? …
spinning a number less than 3, spinning a 4 or 5, spinning a number greater than 8
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there are slips of paper that are numbered from 1 to 15 in a hat. what …
$\frac{7}{15}$
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a shape is picked at random from the group below. image of shapes: firs…
not picking a square, picking a triangle, (assuming the third option is something like not picking a circle or similar, but from the visible options, let's first analyze the total…
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sean recorded everyone’s number-cube rolls during the game. 1, 6, 2, 1,…
Sean confused theoretical probability with experimental probability.
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suppose you rolled a twelve - sided number cube instead of a standard s…
To solve this, we first analyze the game board (from the image): - **Star spaces**: Let's count. From the board, there are 4 star spaces (yellow with star). - **Question mark spac…
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your friend, shamus, suggests that you flip a coin to move either 1 or …
First blank: the coin flip Second blank: the coin flip
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it is marcie’s first turn to roll. which ratio shows the theoretical pr…
$\boldsymbol{\frac{2}{3}}$
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your friend, jamie, rolled a number cube and got the number 5. on his n…
No, Jamie is not correct.
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which theoretical probabilities are equal to 1/3? check all that apply.…
- landing on a star space on the first roll - not landing on a question mark or star on the first roll - rolling a number greater than 4 on the first roll
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you are playing a board game and your playing piece begins the game at …
C. \( \frac{1}{3} \)
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you are playing a board game and your playing piece begins the game at …
2 green spaces, 2 star spaces, 2 question mark spaces
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jana has a number cube numbered 1 to 6. she plans to roll the cube 78 t…
13
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what is autobiographical art? a. artwork expressing something about the…
A. Artwork expressing something about the artist’s life.
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luna entered a raffle for a new pair of running shoes. she purchased 20…
100
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checking your understanding marco is playing a game with a standard dec…
$\frac{1}{4}$
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a letter in the word electric is chosen at random. complete each senten…
s: - There are $\boldsymbol{8}$ possible outcomes. - The theoretical probability that a vowel will NOT be chosen is the ratio $\boldsymbol{\frac{5}{8}}$. - The theoretical probabi…
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a bag contains 4 red marbles, 3 blue marbles, and 3 yellow marbles. mat…
- P(blue) : 3/10 - Total number of marbles : 10 - Number of red marbles : 4 - Number of blue marbles : 3 - P(red) : 2/5
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ava flipped a coin 2 times. what are all the possible outcomes in the s…
D. TT, TH, HT, or HH (assuming the last option is labeled D; if the original options had labels like A, B, C, D with the last one being TT, TH, HT, or HH, then the answer is that …
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match each figurative language device with its definition. column a 1. …
1. Alliteration - c (The repetition of usually initial consonant sounds in two or more neighboring words or syllables) 2. Hyperbole - b (Exaggerated statement or claim not meant t…
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does adding fertilizer affect the productivity of tomato plants? to ans…
- tomato plants: Experimental Units - use of fertilizer, no use of fertilizer: Treatments - total weight of tomatoes: Response Variable - fertilizer: Explanatory Variable
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how does sleep deprivation affect your ability to drive? a recent study…
- Response variable: g. performance measured in assigned tasks - Blinding: h. researchers evaluating subjects’ performance must not know which treatment is being applied at the ti…
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matching the meaning of key features of a graph match the key aspect of…
- \(x\) - intercept: location on graph where output is zero - \(y\) - intercept: location on graph where input is zero - \(f(x)>0\): intervals of the domain where the graph is abo…
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the latin term \ceteris paribus\ means \false unless proven true.\ \obv…
"other things remaining the same." (the option with this text, e.g., if it's the third option in the list, it would be: 3. "other things remaining the same.")
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which day was the weather forecast most accurate? forecast vs actual te…
Thursday (the option: Thursday)
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hey, high school student! “oh man, i sent in my fafsa, but it is saying…
A. You need to submit more documentation to have your application approved.
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a tennis fan counted the number of matches won by her favorite players …
26
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a game show viewer monitors how often a wheel numbered 1 through 5 stop…
10
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a math textbook explains probability by showing a set of cards numbered…
9
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a marketing research firm asked people how many times they visited the …
12
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some students compared how many pairs of boots they own. pairs of boots…
22
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for a study on numerical psychology, people were polled about which num…
2
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as part of a statistics lesson, miss cohen asked her students how many …
6
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an sat prep course claims to increase student scores by more than 60 po…
We reject the null hypothesis and conclude that there is sufficient evidence at a 0.01 level of significance to support the claim that the SAT prep course increases student scores…
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an sat prep course claims to increase student scores by more than 60 po…
\( 1.956 \)
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test scores to find the average of a students test scores, add the scor…
\(\frac{85 + 92 + 88 + 98}{4}\)
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material culture includes multiple choice the values, beliefs, behavior…
D. any physical object or technology produced by members of a society. (Note: Assuming the options are labeled A, B, C, D in order. If the original options have different labels, …
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you’re applying to be a housekeeper! craft an answer for: how would oth…
People would describe me as detail - oriented, reliable, and hard - working. I'm also very organized, patient, and have a warm, friendly demeanor, which helps me connect with othe…
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suppose a woman marries her butler. after they are married, her husband…
First blank: decreases (or falls) Second blank: increase (or be adjusted to include) (Note: For the first blank, common options could be "decreases", "falls", "drops" etc. For the…
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multiplication and addition are both ░░░░░░░░░░░░░, which means the ord…
Commutative (the option labeled "Commutative")
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the employment statistics computed from the establishment survey do not…
those who are self - employed.