統計と確率
データ分析、確率分布、仮説検定、統計手法。
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a red 8 - sided die and a green 8 - sided die are rolled. let a be the …
\(P(A|B)=\frac{1}{2}\)
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context clues help determine the ______________. the impact of rhetoric…
the meaning of unknown words
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a red 8 - sided die and a green 8 - sided die are rolled. let a be the …
\(\frac{1}{2}\)
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which of the following best defines context clues? the motivation behin…
B. helpful words or phrases that provide meaning to unknown words
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if i eat more chocolate, will i win a nobel prize? most people love cho…
1. There is a strong positive linear association between chocolate consumption per resident and the number of Nobel Prizes won per 10 million residents of a country. 2. No. Just b…
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part b if the first marble is not replaced before the second marble is …
B. \(\frac{4}{9}\)
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part a a bag contains 4 blue and 6 green marbles. two marbles are selec…
A. \(\frac{4}{10}\)
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three - fourths of a research team worked in a lab while one - fourth o…
\(3.5\)
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which of the following are true if events a and b are independent? sele…
A. \(P(A|B) = P(A)\), F. \(P(B|A)=P(B)\)
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half of a class took form a of a test, and half took form b. of the stu…
C. \(0.305\)
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a set of data items is normally distributed with a mean of 700 and a st…
\(940\)
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intelligence quotas on two different tests are normally distributed tes…
B. The individual who scores 121 on Test A
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half of a class took form a of a test, and half took form b. of the stu…
C. \(0.305\)
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a survey of 400 students asked for their favorite after - school activi…
$5$
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use the graph to answer the question. the graph includes points where t…
The slope of the line is positive, which means you can predict the number of hours of yard work increases if there is more rain.
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a set of data items is normally distributed with a mean of 70 and a sta…
\(3.5\)
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scores on a standardized intelligence test are normally distributed wit…
\(2.28\)
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scores on a standardized intelligence test are normally distributed wit…
\(6.68\)
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if a system of equations results in a statement like 0 = 5, what does i…
1. B. The system has no solution. 2. B. They have no points of intersection. 3. C. \(x = 5\)
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scores on the gre (graduate record examination) are normally distribute…
\(68\)
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4. is the change in demand, due to the price of hamburgers, a shift tow…
The change in demand is a shift towards the right. A shift towards the right means that at each price level, the quantity demanded is higher. The demand for slices of pizza has in…
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a movie theater sells 50 tickets. adult tickets (x) cost $10 and childr…
1. d. 25 2. a. The system has infinitely many solutions. 3. d. Substitute \(x\) and \(y\) back into both equations.
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scores on the gre (graduate record examination) are normally distribute…
\( 95\% \)
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when rabbits were introduced to the continent of australia they quickly…
1. \(y = 7.982\times(1.497)^{x}\) 2. \(y = 7.982e^{0.4035x}\) 3. \(x = 17.7\) months
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a committee has eight members. there are two members that currently ser…
\(0.0179\)
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scores on the gre (graduate record examination) are normally distribute…
\(68.26\)
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in order to conduct an experiment, 4 subjects are randomly selected fro…
\(123410\)
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when information is understandable, it means that it: a. is always avai…
B. Is able to help users grasp its meaning.
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the figure illustrates a normal distribution for the prices paid for a …
\(49.85\)
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on may 7, 1933, president franklin roosevelt began his second \fireside…
B. He found that mass media helped gain support for his policies.
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not everyone pays the same price for the same model of a car. the figur…
47.5
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matching activity the hunger games - list 2 (ch 7 - 12) directions: wri…
1. V, 2. AA, 3. Y, 4. J, 5. T, 6. NN, 7. D, 8. EE, 9. O, 10. E, 11. W, 12. JJ, 13. MM, 14. HH, 15. II, 16. A, 17. Q, 18. G, 19. R, 20. M, 21. U, 22. KK, 23. Z, 24. I, 25. K, 26. L…
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the responses of 940 adults in a certain region to a survey question ab…
(a) \(0.346\) (b) \(0.115\) (c) \(0.309\) (d) \(0.321\)
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select the correct answer from each drop - down menu. a large manufactu…
Based on the model, the company hired approximately \(600\) workers in 2019. Since \(r^{2}=0.56\), this function is not a perfect fit (because \(r^{2}<1\)), but it is a moderately…
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the scores on a test are normally distributed with a mean of 130 and a …
\(52\)
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the scores on a test are normally distributed with a mean of 50 and a s…
\(75\)
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the scores on a test are normally distributed with a mean of 130 and a …
\(52\)
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question 13 (5 points) find a logarithmic function to model the data. x…
\(f(x)=60.04−8.25\ln x\)
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select the correct answer. which equation best models the set of data i…
A. \(y = 33\sqrt{x}+32.7\)
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the estimated percent distribution of a certain countrys population for…
(a) \(5.6\%\) (b) \(41.9\%\) (c) \(83.6\%\) (d) \(20.5\%\)
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a physics class has 40 students. of these, 14 students are physics majo…
\(0.725\)
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the probability of event a, given that event b has occurred, can be fou…
\(0.836\)
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question 3 close read: analyze the text identify the choice that best a…
It underscores the idea that his conscience will not let him rest.
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a coin is tossed and an eight - sided die numbered 1 through 8 is rolle…
\(0.375\)
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6 word summary - in exactly 6 words, write a summary as to why the foun…
Balance state power, one vote per state.
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jeremiah lives in new york city and takes a taxi almost everywhere he g…
\(\$2.50\) is the base amount that Jeremiah must pay in order for the taxi to pick him up before he has been driven anywhere.
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first read: comprehension identify the choice that best answers the que…
She says that the king looked like her father as he slept.
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question 1 (03.07 mc) 3 pts what is the difference between the terms ot…
It cannot be proved that an individual is "innocent." Juries say "not guilty" because guilt was not proved in the case.
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question 3 first read: comprehension identify the choice that best answ…
He feels his guilt is enormous.
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the number of times a player has golfed in ones lifetime is compared to…
It is a weak negative correlation, and it is not likely causal.
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13. if a system of equations is described as having an infinite number …
d. The conditions represented by the equations are in perfect harmony, allowing for consistent outcomes across a range of scenarios. # 14.
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which r - value represents the weakest correlation? -0.75 -0.27 0.11 0.…
\(0.11\)
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the accompanying table shows the results of a survey in which 250 male …
(a) \(0.432\) (b) \(0.554\)
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what does it mean to have \superpowers?\ to make others believe youre b…
To inspire, and make the world a better place.
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the chances of winning are often written in terms of odds rather than p…
\(1:3\)
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use the frequency distribution to the right, which shows the number of …
$0.948$
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what is the correlation coefficient for the data shown in the table? 1 …
-1
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a probability experiment consists of rolling a 6 - sided die, numbered …
\( 0.333 \)
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7. if the equations of a system are 3x + 2y = 6 and 6x + 4y = 12, the s…
c. Consistent and dependent ### Question 8
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the probability that an event will happen is ( p(e)=\frac{36}{41} ). fi…
\(\frac{5}{41}\)
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multiple choice 1 point why were natives in the indiana territory suspi…
Americans had not kept their word in the past and had taken land from natives already.
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mrs. sutton, the science teacher, informed her students of their scores…
\(73\)
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a farmer counted the number of apples on each tree in his orchard. are …
41 - 60 apples
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during fitness day at school, tommy and his classmates took part in a p…
65
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a crayon factory monitored the number of broken crayons per box during …
20 - 24 broken crayons
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charlotte found a list of the number of roller coasters at each amuseme…
0
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the train conductor made sure to count the number of passengers on each…
\(0 - 19\) passengers.
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the lowell chamber of commerce researched the number of employees worki…
\(195\)
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while writing a paper on making decisions in groups, herman researched …
3
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the springfield soup company recorded the number of rotten tomatoes in …
39
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6. define the law of large numbers in your own words.
The Law of Large Numbers states that as the number of trials in a random experiment increases, the average of the outcomes approaches the expected value.
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3. part a: what does the phrase \historical precedent\ most closely mea…
D. Historical events that serve as a guide for subsequent situations
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read the excerpt from \the crab that played with the sea.\ he went nort…
- the repetition of words and patterns - the use of animals to tell a magical story
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match the strategy a reader can use while reading \atalanta, the fleet-…
- Predicting: The reader makes a guess about who will be able to defeat the boar. - Connecting: The reader thinks about how Atalanta compares to heroes in other stories. - Visuali…
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what does each number mean in this context? a negative number means the…
A negative number means the bakery sold cookies. A positive number means the bakery made cookies.
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a chef randomly chooses 5 apples from a case of 24 apples. which best 4…
B. \(_{24}C_{5}\)
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2. half of a class took form a of a test, and half took form b. of the …
C. \(0.305\)
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lesson 6.2 - continuous random variables quicknotes discrete only takes…
a. \(M\) is a continuous random variable because time is a continuous quantity (it can take on any value within an interval). b. \(P(M\leq90)\approx0.080\). Approximately \(8\%\) …
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read the excerpt from the crab that played with the sea. he went north,…
- the repetition of words and patterns - the provided translation support - the use of animals to tell a magical story
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11. what is the sample proportion? calculate this value below and round…
\(0.768\)
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unit 1: identity central idea of \thank you maam\ aim: how can analyzin…
C. Mrs. Johnson’s forgiveness teaches Roger not to steal
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read the passage from \the crab that played with the sea.\ ah! said the…
They describe Pau Amma's impact on the sea and the animals.
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a random sample of 30 college students is selected. each student is ask…
| Hours Studied | Frequency | |----|----| | 15 | 5 | | 16 | 3 | | 17 | 1 | | 18 | 2 | | 19 | 4 | | 20 | 5 | | 21 | 4 | | 22 | 0 | | 23 | 1 | | 24 | 2 | | 25 | 3 |
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act scores are normally distributed with a mean of 20 and standard devi…
\(27.5\)
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ryan gathered data about the age of the different dogs in his neighborh…
It is a weak negative correlation, and it is not likely causal.
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find the median for the data items in the frequency distribution. the m…
\(4\)
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which best describes the strength of a model with an r - value of 0.29?…
a weak positive correlation
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select the reason(s) that auto insurance is more costly for young drive…
All of the above
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the box and whisker chart represents the time (minutes) arizonians spen…
A. The median time is 30 minutes; D. Most of the people travel at least 15 minutes.
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the table shows the shipping costs for items of different values. which…
a weak positive correlation
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bar graph use the information below to answer the questions the data in…
Part A: \(3.35\%\) Part B: There is a \(95\%\) confidence that between \(64.65\%\) and \(71.35\%\) of all adults in the country favor a ban on high - capacity.
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which r - value represents the strongest negative correlation? - 0.7 - …
\(-0.7\)
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the manager of a ski resort in the alps always worries there wont be en…
\(y=-4.581x + 50.679\)
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which r - value represents the most moderate correlation? -0.92 -0.18 0…
\(0.56\)
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the table shows the time a patient spends at the dentist and the amount…
\(0.93\)
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blood pressure use the following information to answer the questions sy…
Part A: D. 3 Part B: E. 99.85%
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the number of movie tickets sold depends on the number of people. ident…
people
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test a and test b use the information below to answer the questions: in…
- Part A: \(1.67\) - Part B: \(1.50\) - Part C: Person A
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the scores on a test are normally distributed with a mean of 140 and a …
182
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scores on the gre (graduate record examination) are normally distribute…
$47.5$