Statistics & Probability
Data analysis, probability distributions, hypothesis testing, and statistical methods.
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question 10 of 25 in a medical experiment, the number of bacteria is ha…
B. Exponential decay
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question 12 what drives the production and distribution of goods and se…
C. the profit motive, economic competition, and supply and demand
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select the correct answer. the number of tomatoes sold weekly by a groc…
B. There is an 84% chance that the grocery store sells more than 390 tomatoes in a week.
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kwan has 27 baseball cards. alex has 3 times as many as kwan. in the eq…
Equations That Model the Situation: \( 27\times3 = n \), \( n\div3 = 27 \) Equations That Do NOT Model the Situation: \( 27\div3 = n \), \( n - 3 = 27 \)
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complete the statements to compare the squirrel and the mouse in two di…
The squirrel is 24 centimeters taller than the mouse. The squirrel is 4 times as tall as the mouse.
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the tables show two functions evaluated for the given values of x. | x …
\(\begin{array}{|c|c|c|c|c|}\hline x& - 8&-4&4&8\\\hline\frac{g(x)}{f(x)}&-9&-5&3&7\\\hline\end{array}\)
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a bag with 8 marbles has 2 yellow marbles, 3 red marbles, and 3 blue ma…
$\frac{3}{4}$
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question 5 of 25 stephanie invested money in an account where interest …
# Explanation: To determine the original investment (principal amount) in a compound - interest problem, we use the compound - interest formula: The general formula for compound i…
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solve the equation. \\(\\log_4(x + 9) - \\log_4 x = 2\\) select the cor…
A. $x = \frac{3}{5}$
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a spinner with 10 equally sized slices has 10 yellow slices. the dial i…
\( \frac{1}{1} \) (or 1)
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a bag with 6 marbles has 1 blue marble, 2 yellow marbles, and 3 red mar…
$\frac{1}{6}$
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3. amazon prime is a subscription service for the online retailer amazo…
a. The probability is approximately $\boldsymbol{0.059}$ (or $0.0582$). b. $T$ is the number of Amazon Prime members in the sample of 100 who purchase at least ten items per month…
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select the correct answer from each drop-down menu. cameron is a member…
$0.45 \pm 0.0579$ (or in percentage terms, $45\% \pm 5.79\%$)
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select the correct answer. a survey of randomly-selected students on a …
D. The population proportion is not necessarily equal to the sample proportion.
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type the correct answer in each box. use numerals instead of words. the…
105, 110
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the scatter plot below shows the cost (y), in dollars, of pear trees ba…
B. \(y = 11.8x + 29.2\) ### Problem 2 (Janet's Walking Distance)
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select all the correct answers. leo is looking at two different savings…
\( y = 500(1.025)^x \), \( y = 400e^{0.02x} \)
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inuit people still wear tattoo designs from thousands of years ago. the…
Inuit people still wear tattoo designs from thousands of years ago, even though the meaning of some tattoo designs was lost during colonization, so some wearers invent new meaning…
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3. amazon prime is a subscription service for the online retailer amazo…
# Explanation: ## Step 1: Identify the distribution and parameters We know that the number of items purchased per month for an individual member follows a normal distribution with…
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3. amazon prime is a subscription service for the online retailer amazo…
The probability that a randomly selected Amazon Prime member purchases at least ten items per month is approximately \( 0.0582 \) (or \( 5.82\% \))
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2. at a local carnival, there is a \double your money\ money booth wher…
The mean of \( W \) is \(\$ -3\) (or \(-\$3\)). ### Part (b)
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ap stats unit 4 part 2 (6.1-6.8) test v1 name chase colma 1. the distri…
\( 0.08 \) ### Part (b)
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3. \\(\\frac{1}{2}+\\frac{1}{4}=\\frac{\\square}{\\square}+\\frac{\\squ…
For \(\frac{1}{2}+\frac{1}{4}\): \(\frac{2}{4}+\frac{1}{4}=\frac{3}{4}\) (blanks: 2, 4, 1, 4, 3, 4) For \(\frac{1}{4}-\frac{1}{8}\): \(\frac{2}{8}-\frac{1}{8}=\frac{1}{8}\) (blank…
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1. what number is 24% of 80?
19.2
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which two terms are commonly used to mean a specific promise a company …
B. Guarantees and warranties
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directions: complete this page with your teacher and partner. the table…
# Explanation: ## Step1: Contar las tally marks Cada grupo de tally marks (cinco líneas) y las líneas individuales. Para Rojo: 5 grupos completos (5×5=25?) Espera, veamos: Rojo ti…
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which model represents the number of cups of food in one serving? show …
The graph on the Left
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which strategies are most effective to help a reader determine the mean…
A. Check for nearby synonyms that may provide a clue to the word’s meaning, C. Check surrounding words to see what events are leading up to this word, E. Substitute the unfamiliar…
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while looking at some reports, a store manager notes that antique clock…
8%
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½ is 25% of what number? \\(\\frac{\\quad}{\\quad} = \\frac{25\\%}{100}…
The number is 2.
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a store employee notices that jump ropes that cost his store $1.50 are …
108%
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8 multiple choice 1 point find the new price: $13.00 discounted 25% $25…
D. $9.75$
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30,000 31,000 32,000 33,000 34,000 35,000 34,167 which number is 34,167…
- Which number is 34,167 closer to? 30,000 - The closest thousand to 34,167 is 34,000
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last year, there were 525 seventh graders. 43 of the seventh graders pa…
B. 8%
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a scale model of a television, 1 centimeter represents 6 inches. scale …
54 ### Part (b)
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6 fill in the blank 1 point 18 students in mrs. larsons third period cl…
24
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poetic elements quick check how would you describe the meaning of enjam…
A. when a line break occurs in the middle of a sentence or phrase in a poem
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10) which of the following statements is correct representing the choco…
b) The initial amount of chocolate was 60 pieces., e) 10 baskets were made before the chocolate ran out.
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what percent is 15 of 20? type your answer...
75%
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what piece of evidence below could be added to the article to support t…
A. A complaint about the lack of jobs for the people in the Bantu
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4 fill in the blank 1 point andrew took a math test with 40 questions t…
34
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during a snowstorm, carlo tracked the amount of snow on the ground. whe…
The graph should have three segments: from (0,4) to (5,14) (positive slope 2), (5,14) to (9,26) (positive slope 3), (9,26) to (13,6) (negative slope 5).
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8) which of the following situations can be modeled by a function whose…
a) The water level in a lake increases by 2 inches a month, d) The number of pandas in the zoo increases by 3 pandas each year
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here are the clues for a mystery number. the number is about 80,000 whe…
75000 (Other valid numbers could be 76000, 77000, 78000, 79000, 79999, 81000, 82000, 83000, 84000 etc.)
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number of goals scored 1. katie recorded the number of goals the player…
4
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what is 391,024 rounded to the nearest hundred thousand? ?
400000
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climb time is a different rock - climbing gym. it also costs $30 per mo…
The one - time equipment fee is \$20.
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in a scale model of a table, 1 centimeter represents 8 inches. scale 1 …
### Part (a) # Explanation: ## Step1: Identify the scale ratio The scale is \(1\) cm : \(8\) in, meaning \(1\) cm in model = \(8\) in real. ## Step2: Set up proportion for height …
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teks 7.6i: the results of flipping a coin 50 times were 28 heads and 22…
The experimental probability of flipping tails is \(\frac{11}{25}\) (or 0.44).
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level 158 what fraction and decimal is shown on this 1000 grid? select …
B. $0.2 + 0.02+0.002 = 0.222$, C. two hundred twenty two thousandths, D. $\frac{200}{1000}+\frac{20}{1000}+\frac{2}{1000}=\frac{222}{1000}$
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teks 7.6h: a restaurant offers 3 appetizers, 5 main courses, and 2 dess…
30
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level 158 which of the following is equal to 0.06? select an answer a 2…
B. $\frac{3}{50}$
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level 158 what is the equivalent fraction for a number that is one hund…
C. \( 9\frac{423}{1000} \)
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level 150 what fraction and decimal is shown on this 1000 grid? select …
A. \(0.1 + 0.01 + 0.001 = 0.111\), B. one hundred eleven thousandths, C. \(\frac{100}{1000}+\frac{10}{1000}+\frac{1}{1000}=\frac{111}{1000}\)
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in the early 1900s, what did it mean for cities to be \dry\? ○ cities h…
C. Cities restricted the sale and consumption of alcohol.
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level 158 which of the following is equal to 0.05? example select an an…
A. $\frac{1}{20}$
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teks 7.6e: what is the probability of not rolling a 5 on a standard six…
\(\frac{5}{6}\)
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level 158 which of the following is equal to 0.05?
# Ex[SSE Completed, Client Connection Error][LLM SSE On Failure]
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15. look at the map, and answer the following question. this map of new…
The correct option is the third one (assuming the third option is "1200 × 1110 miles", with the identifier as per the option's position, e.g., if it's the third radio button optio…
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level 157 what is the equivalent fraction for a number that is one hund…
C. $3\frac{69}{1000}$
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teks 7.6e: a bag contains 4 red, 6 blue, and 2 green marbles. what is t…
\(\frac{1}{2}\)
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the owner of a small store buys coats for $55.00 each answer parts a an…
a) The sale price is $120\%$ of the purchase price. b) The owner must buy and sell 5 jackets.
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level 157 which shows these fractions in order from least to greatest? …
B. \(1\frac{3}{4},\frac{9}{4},\frac{10}{4},3\frac{3}{4}\)
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level 157 which shows these fractions in order from least to greatest? …
# Explanation: ##[SSE Completed, Client Connection Error][SSE Completed, Client Connection Error][LLM SSE On Failure]
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level 157 which shows these numbers in order from greatest to least? \\…
C. \(\boldsymbol{\frac{5}{6},\frac{3}{6},\frac{2}{6},\frac{1}{6}}\)
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level 157 which chart shows how these fractions compare to 0, \\(\\frac…
# Explanation: ## Step1: Analyze each fraction - $\frac{1}{10}$: Very small, close to 0. - $\frac{3}{8}$: $3\div8 = 0.375$, close to $\frac{1}{2}$ (0.5). - $\frac{2}{4}=\frac{1}{2…
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level 157 which chart shows how these fractions compare to 0, \\(\\frac…
A. Close to 0: $\frac{1}{10}$, About $\frac{1}{2}$: $\frac{3}{8}$, Exactly $\frac{1}{2}$: $\frac{2}{4}$, Close to 1: $\frac{9}{10}$
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level 157 here are models of two fractions. which statement about the f…
B. \(\frac{3}{4}\) is closer to 1 than \(\frac{2}{3}\), because \(\frac{1}{4}\) is less than \(\frac{1}{3}\).
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read the question carefully and select the best answer. choose the sent…
A. "Texas was also the site of the first nationals Biles would win."
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level 157 here are models of two fractions. which pair of statements is…
D. $\frac{4}{7}$ is greater than $\frac{1}{2}$. $\frac{3}{7}$ is less than $\frac{1}{2}$.
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level 157 which statements are true? select all that apply. a 5/6 b 1 3…
B. \(B > C\), C. \(C > A\), D. \(A < B\)
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4) what is the equation of the line? y = 35x 5) how far does the car tr…
105
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a store manager instructs some new trainees that a coat priced at $34 w…
8%
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level 157 a fraction model is given below. what fraction does this mode…
B. \( 2\frac{2}{6} \), C. \( \frac{14}{6} \)
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one spring day, josiah noted the time of day and the temperature, in de…
To graph the data, plot the points \((0, 52)\), \((3, 58)\), \((8, 73)\), \((12, 73)\), \((16, 65)\), \((18, 57)\) and connect them with line segments for each time interval (risi…
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in act iii, scene 5, juliet says is there no pity sitting in the clouds…
C. desperation.
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use the given conversion factor to convert 70 mi to km. 1 mi = 1.6 km 7…
\(112\)
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12. jeffrey is looking at a map of his town to help him get from his sc…
2.25 miles
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multiple choice 5 points 17 katelyn starts a job that pays $8.50 per ho…
\( p = 0.75y + 8.50 \) (the third option)
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the probability for event a is 0.3, the probability for event b is 0.6,…
D. The sum of \( P(A) \) and \( P(B) \) is not equal to \( P(A \text{ or } B) \)
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11 samuel is comparing the average epa ratings on 4 types of vehicles. …
243.75 gallons (the option with 243.75 gallons)
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how many in all? this drawing shows a kitchen counter that was covered …
- Grey tiles: \( 5 \times 6 \) (or \( 6 \times 5 \)) - White tiles: \( 5 \times 2 \) (or \( 2 \times 5 \)) - Total: \( 5 \times 6 + 5 \times 2 = 5 \times 8 = 40 \) (or other equiv…
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3. emmett is attending a birthday party that starts at 1:00 p.m. he nee…
11:40 a.m.
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the graph shows the distance a microcar travels at its top speed over t…
The graph shows a straight line that passes through the origin. That means the relationship is proportional.
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question 24 of 25 for which purpose would you most likely use a bar gra…
A. To show how many people in one city prefer paper bags and how many prefer plastic bags
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8. quinns school built a new building. it took 1.9 years to complete th…
16,644 hours (corresponding to the option "16,644 hours")
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fix any punctuation or capitalization errors below. click \submit answe…
Lincoln Loud was running late to his own birthday party. All of his friends, meanwhile, were waiting to surprise him with cake, balloons, and presents.
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a) what is the slope of the line? 50 _____________________ 4) what does…
50
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topic 1 proportional relationships b. set up and solve a proportion to …
1%
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4. find the difference: 85.37 - 75.2 = a 160.57 b 10 c 10.35 d 10.17
D. 10.17
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abdul makes $28.20 from selling 56.4 ounces of lemonade find the unit p…
$\$0.50$
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3. find the perimeter (total length of all four sides) of a trapezoid w…
B. 14.5 ft
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6. keenan is flying to hawaii for vacation. his flight leaves at 12:30 …
A. 4:00 p.m
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multiple choice 5 points sarah walked 1 mile yesterday. today she will …
(Assuming the correct graph is the one with equation \( d = 3h + 1 \), so the graph with y - intercept 1 and slope 3. If the options are given as graphs, the correct graph is the …
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2. beginning with the number 6.472, add: 1 hundredth 3 ones 5 tenths wh…
C. 9.982 (Note: The option label in the image seems to have a circular icon for this option, but following the option content, the correct one is the one with 9.982)
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mary has an essay due in 4 days. she estimates that she needs to spend …
8:30 p.m. (the option with 8:30 p.m.)
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4. chris is sowing a large field with alfalfa. each acre requires 12.4 …
86.8 pounds
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modeling real life a dentist charges a flat fee for an office visit, pl…
The slope of \( 200 \) represents the additional fee per tooth removal. The \( y \) - intercept of \( 100 \) represents the initial fee for an office visit.
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question 11 of 25 you conduct an experiment to find out the average tim…
C. The age of the survey takers isn't very diverse.
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modeling real life a dentist charges a flat fee for an office visit, pl…
The slope is 200, and the y - intercept is 100. The slope of 200 represents the additional fee per tooth removal. The y - intercept of 100 represents the initial fee for an office…