Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
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read the excerpt from \daughter of invention\. meanwhile, yoyo was on h…
Yoyo is saddened by her father's disapproval of the message in her speech for the assembly.
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ch 22 as the sample size increases, the sampling distribution of p^ (p …
For the first question: True. For the second question: \(H0: p = 0.75, Ha: p eq0.75\).
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31. which scenario could use the concept of odds to make a decision? a.…
A. Deciding whether to carry an umbrella based on weather odds
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28. how is the theoretical probability of an event calculated? a. \\( \…
C. \(\frac{\text{number of favorable outcomes}}{\text{total number of possible outcomes}}\)
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27. the probability of rolling a number less than 5 on a six - sided di…
B. \(\frac{2}{3}\)
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23 what is the probability of either event occurring when two events ar…
\(P(A\cup B)=1.0\), so the answer is b. 1.0
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18. what is the probability of rolling a number greater than 4 on a sta…
A. \(\frac{1}{3}\)
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17. probability trees are useful for analyzing what type of events? a. …
D. Sequential events
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16. which events could occur at the same time, indicating overlapping? …
C. Drawing a king or a heart
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a. fill in the blanks directions: read each sentence and choose the wor…
1. astronaut 2. asterisk 3. astronomical 4. dilemma 5. bilingual 6. astronomer 7. asteroid 8. diverse 9. trilogy 10. trio
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10. which of the following probabilities indicates a certain event? a. …
A. 1
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3. what is the first step in designing a probability simulation? a. sel…
C. Define the problem
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27. how is the probability of an event not occurring calculated? a. $1 …
A. \(1 - P(E)\)
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26. what are dependent events in probability? a. events where the outco…
d. Events where the outcome of one affects the outcome of another
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paying a person a lower wage or excluding a person from an occupation o…
If the laws make the work environment safer, there is no reason to pay workers a compensating differential for the risk associated with their jobs.
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let p. a student plays basketball. let q: a student plays tennis. how m…
4
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24. which events could occur at the same time, indicating overlapping? …
D. Drawing a king or a heart
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according to the u.s. bureau of labor statistics, between 2000 and 2005…
True
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the northern conference is a running competition where teams from diffe…
A. Option Text
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20. what describes the set of all possible outcomes in a probability ex…
d. Sample space
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skiing is a snow sport where skiers glide over snowy hills. the data be…
B.
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19. what type of probability is calculated from the actual outcomes of …
C. Experimental probability
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18. which of the following values represent impossible events? a. 0 b. …
A. 0
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which data set could be represented by the box plot shown below? choose…
D. \(4,5,7,7,7,8,10,11,11,13,13,14\)
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17. what type of events do not affect each others outcomes? a. dependen…
C. Independent events
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a website developer tracks the revenue for a new website over the cours…
The slope is \(\frac{125}{1}\), the unit rate is \(125\), this means that \(125\) dollars of revenue is generated in every 1 day.
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16. which of these are true about simple events? a. it includes scenari…
d. It has only one outcome
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14. which scenario could use the concept of odds to make a decision? a.…
B. Deciding whether to carry an umbrella based on weather odds
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13. what is the probability of drawing a red card or a face card from a…
A. Greater than \(\frac{6}{13}\)
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without a better understanding, wheres the value? vazire says that pers…
of what the psychologist means
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12. which formula is used to calculate the probability of an event e? a…
B. \(P(E)=\frac{\text{Number of favorable outcomes}}{\text{Total number of possible outcomes}}\)
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skiing is a snow sport where skiers glide over snowy hills. the data be…
C.
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10. what is the probability of rolling a number greater than 4 on a sta…
B. \(\frac{1}{3}\)
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9. what does a probability of 0 indicate about an event? a. the event i…
A. The event is impossible to happen
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8. what structure is used to visualize all possible outcomes of a serie…
d. Probability tree
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7. if there are 4 blue beads and 5 red beads in a bag, what is the prob…
D. \(\frac{4}{9}\)
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6. what is the formula for calculating the probability of an event occu…
B. \(P(E)=\frac{\text{number of favorable outcomes}}{\text{total number of outcomes}}\)
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5. what is the theoretical probability of flipping a heads on a fair co…
B. \(\frac{1}{2}\)
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4. if a single six - sided die is rolled, what is the theoretical proba…
C. \(\frac{1}{3}\)
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3. how many combinations are possible when choosing 2 fruits from a set…
B. 3
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ch 22 students conducted a survey and found out that 36% of their peers…
Yes, because both \(np\) and \(n(1 - p)\) are greater than \(15\).
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1 what term describes the unpredictability inherent in various processe…
a. Randomness
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use both tally charts above to answer the questions. 1. how many more c…
1. \(2\) more children 2. \(5\) fewer children 3. \(3\) children 4. \(15\) children 5. \(16\) children 6. \(10\) children 7. \(4\) children 8. Soccer
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13. what is the probability of each outcome in a fair coin toss represe…
B. \(\frac{1}{2}\)
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11. which formula is used to calculate the number of permutations of n …
B. \(\frac{n!}{(n - r)!}\)
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8. if you have 5 books and you want to know how many different ways you…
d. \(P(5,3)\)
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7. how do you calculate the probability of two independent events occur…
C. Multiply the probabilities
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5. how can probability trees aid in decision - making processes? a. by …
B. By visualizing outcomes and probabilities
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4. what structure is used to visualize all possible outcomes of a serie…
A. Probability tree
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how many combinations are possible when choosing 2 fruits from a set of…
C. 3
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if you have 5 books and you want to know how many different ways you ca…
A. \(P(5,3)\)
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the diagram represents three statements about animals at the zoo: p, q,…
15
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let p: a car has automatic windows. let q: a car has automatic seats. p…
\(80\)
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question the roman maxim of patria potestas means that select an answer…
A. the power of the father is absolute within his own household.
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if you want to arrange all members of a set in every possible way, you …
1. total 2. order 3. set 4. elements 5. simplification
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if the president commits a high crime or misdemeanor, what can be done?…
Legislative: impeachment
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use the magnitudes, rounded to two decimal places, of the 100 earthquak…
| Magnitude | Frequency | |----|----| | \(0.00 - 0.49\) | \(10\) | | \(0.50 - 0.99\) | \(22\) | | \(1.00 - 1.49\) | \(30\) | | \(1.50 - 1.99\) | \(11\) | | \(2.00 - 2.49\) | \(10\…
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the b&s novelty and craft shop in bennington, vermont, sells a variety …
\(0.1833\)
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the b&s novelty and craft shop in bennington, vermont, sells a variety …
Probability of a stockout: \(0.0385\)
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step 1: read all the way through to determine the following! purpose = …
Purpose: To criticize parents' over - sharing on social media. Tone: Sarcastic, judgmental. Audience: Social media users (especially parents).
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26. the graph below is based on the rat in a maze data at left. what is…
- **Question 26**: D. All of the above - **Question 27**: D. Pie graph
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25. which graph goes with this data set? farm animal mass data animal m…
D. D
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what is the difference between summarizing and paraphrasing? summarizin…
Summarizing reduces a larger text by focusing on the main ideas, while paraphrasing restates the entire text.
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find the equation for the least squares regression line of the data des…
\(y=-19.748x + 966.463\)
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josie keeps detailed information about her model airplane collection. t…
\(59.139\)
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for a science project, nicholas wants to see if a larger body of water …
\(y=-0.023x + 30.075\)
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for each day, clarence notes the number of minutes shannon spends playi…
\(45.582\)
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for each day, clarence notes the number of minutes playing video games,…
\(1.795\)
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lydia runs an experiment to determine if a coin is fair by counting the…
51
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playing video games makes shannon so happy that she thinks it even help…
\(y=-1.570x + 226.597\)
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a scatterplot is used to display data where x is the amount of time, in…
The member can tolerate a temperature of \(173^{\circ}\) Fahrenheit for \(0\) minutes.
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for the last several tests, gabriel computes the average number of word…
\(80.596\)
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for the last several tests, gabriel computes the average number of word…
\(0.334\)
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gabriel is a math teacher at a large school. he wonders if his test pro…
\(y=-0.330x + 90.673\)
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percent carbon weight supported (in kilograms) 1.03 1,066 1.11 1,186 1.…
\(1134.743\)
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percent carbon weight supported (in kilograms) 1.03 1,066 1.11 1,186 1.…
\(239.903\)
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in a local high school, there are 164 seniors. of those seniors, 84 are…
\(60\) students
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a french car company wants to cut costs by using cheaper low - carbon s…
\(y = 239.850x+858.888\)
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the table shows the ages and weights of babies at a hospital. newborn c…
positive
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from his data, donald found the number of pieces in each model, x, and …
\(54.937\)
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what does it mean to \do no harm\? only assign necessary homework foste…
- First question: avoid hurting others - Second question: treating others with respect and dignity, honoring commitments, being honest and transparent, taking responsibility for o…
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brutus. what means this shouting? i do fear the people choose caesar fo…
Brutus loves Caesar, and they are good friends.
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which variable would most likely be considered numerical? type of heati…
amount of water used (gallons)
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which variable would most likely be considered categorical? internet se…
internet service provider
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a dataset variable represents the monthly amount spent on groceries. ho…
numerical
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which variable is numerical? electricity provider internet speed (mbps)…
internet speed (Mbps)
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which example is a categorical variable? monthly savings cost of rent a…
type of utility
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read the sentence from the section \history of daylight time in u.s.\ t…
1. B. remained 2. C. The idea is to have daylight hours when people want them. 3. C. Daylight saving time became more popular during World War I as a way for people to save co 4. …
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question 7 jim gallen left chris with... a a piece of advice, to climb …
Question 7: B. his pair of boots and the lunch that his wife had packed him. Question 8: D. To recreate the sense of mystery that surrounded Chris' death.
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in terms of your own abilities, what does it mean to be self-aware? (1 …
Knowing your own strengths and weaknesses.
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ms. sutton recorded the word counts and scores of the top ten essays in…
Word count tends to decrease as the score decreases.
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which characteristic of a data set makes a linear regression model unre…
a correlation coefficient close to 0
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10 fill in the blank 1 point n weighted average what is the weighted av…
\(2.8\)
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score on last try: 0 of 4 pts. see details for more. at least one score…
a. \(\frac{1}{17}\) b. \(\frac{4}{17}\) c. \(\frac{13}{51}\) d. \(\frac{4}{51}\)
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the graph shows the relationship between daily caffeine consumption and…
increasing heart rate, positive correlation
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graham uses a 10 by 10 grid to model a decreasing pattern. he cuts off …
80%
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a card is drawn randomly from a standard 52 - card deck. find the proba…
(a) \(\frac{1}{13}\) (b) \(\frac{1}{52}\) (c) \(\frac{3}{13}\) (d) \(\frac{3}{4}\) Expected value of one raffle ticket: \(-0.59\) Expected value of 12 raffle tickets: \(-7.1\) Exp…
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12. important in hindu thought, the concept of darshana/darshan refers …
E. Both C and D.
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a line of best fit is drawn for the set of points shown on the graph. w…
\((30,38)\)
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the equation for the line of best fit is ( f(x)=1.8x - 5.4 ) for the se…
20