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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directions: read the selection and answer the questions that follow. al…
D. Benjamin thinks of his neighborhood as quiet only to learn that an artist is noisily constructing a piece of art nearby.
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directions: read the selection and answer the questions that follow. al…
D. personification
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blended together as a hum of background sound, noise without meaning. a…
B. curious and observant
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directions: read the selection and answer the questions that follow. al…
C. activity
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ahmad is interested in his cousins golf scores to determine what patter…
| Score | Distance from Par | |-------|-------------------| | -5 | 5 | | -4 | 4 | | -3 | 3 | | -2 | 2 | | -1 | 1 | | 0 | 0 | | 1 | 1 | | 2 | 2 | | 3 | 3 | | 4 | 4 | | 5 | 5 |
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government a safe place to keep money. it would also make loans to busi…
WHO: Alexander Hamilton WHAT: Create a national bank (safe money - keeping, loan - making, bank - note - issuing) WHEN: Early days of the new nation (not precisely dated) WHERE: U…
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what is meant by the tradition of courtly love? a. the tradition of lov…
A. the tradition of love and courtship followed by medieval nobles
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event a occurs with probability 0.4. event b occurs with probability 0.…
\(P(A\ or\ B)=0.9\)
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if performances on ap statistics tests are independent and the probabil…
\(0.008\) (the green - colored option)
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the data below show the height, in feet, and the foot length, in inches…
\(11.0\)
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what is the chance of rolling a even number in a fair number cube? answ…
\(50\%\)
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suppose that a certain mathematics class contains 26 students. of these…
- The probability of selecting a person that is in sports and in band: True - The probability of selecting a person that is not in sports and is in band: False - A person in band …
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in a class, 60% of the students like math, and 40% like science. 20% of…
\(\frac{1}{3}\)
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jerry asked 500 people to run as fast as possible for 15 seconds. he th…
| | Value A is Greater | Value B is Greater | Equal | |---|---|---|---| | First Pair | | | \(\square\) | | Second Pair | \(\square\) | | | | Third Pair | | \(\square\) | |
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mr. anderson and ms. brown each recorded the number of push - ups done …
| | Greater for Mr. Anderson's Class | Equal for Both Classes | Greater for Ms. Brown's Class | |---|---|---|---| | Number of Students Who Did Push - ups | \(\square\) | | | | Max…
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at a school, eleventh - graders and twelfth - graders were asked how th…
$\frac{5}{9}$
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if ( p(a) = 0.36 ) and ( p(b) = 0.42 ) and ( a ) and ( b ) are independ…
\(0.6288\)
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• the mean height of the players on team a is 5 feet 8 inches. • the me…
A. If the coach puts Tara and Laney on Team A, the mean height of the players on Team A will be taller than 5 feet 8 inches.
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the probability that an engine will not start is 0.04. a rocket has fou…
\(0.1507\)
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what is the probability that you roll two dice and get a 5 and 3? answe…
\(\frac{1}{18}\)
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the table below shows scores on a math test complete the frequency tabl…
30: 1, 40: 0, 50: 3, 60: 5, 70: 2, 80: 4, 90: 6, 100: 3
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a group of data items and their mean are given. 135, 162, 192, 195, 207…
a. \(-60,-33,-3,0,12,84\) b. \(0\)
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select the correct answer. what is the term for words from different la…
B. cognates
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select the line plot that represents the given ages of students in a yo…
None of the options are correct based on the frequency counts. But if we assume a possible mis - count in the problem - solving (maybe a typo in the problem's age data or in the o…
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a random sample of 34 male college students is selected. each student i…
A.
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if the p(a) =.3, p(b) =.65, and events a & b are independent, find the …
\(0.755\)
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of the light bulbs made by acme, 7% are defective. only 2% of the light…
A. \(\frac{2}{23}\)
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find the midrange for the following group of data items. 84, 85, 86, 90…
\(87\)
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question 2 1 point cultivation theory suggests that people socioeconomi…
B. False
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two cards are drawn without replacement from a standard deck of 52 card…
\(\frac{12}{51}\)
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if a batter in a baseball game has a.241 average when he is up to bat. …
\( 24 \) hits
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find the mean for the following group of data items. 58, 55, 57, 50, 55…
\(56\)
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a set of data items is normally distributed with a mean of 70 and a sta…
\(2\)
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use the display of data to find the standard deviation. the standard de…
\(0.87\)
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find the median for the data items in the given frequency distribution.…
$4$
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the government of a large city needs to determine whether the citys res…
Survey a random sample of persons within each neighborhood.
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determine which scenario could be found using ( p(a)=\frac{(_{5}c_{2})(…
probability of choosing two male and one female committee members from a group containing five men and eight women.
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not everyone pays the same price for the same model of a car. the figur…
49.85
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find the standard deviation for the following group of data items. 16, …
$3.77$
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suppose you toss a fair coin ten times and it comes up heads every time…
None of the above are true statements.
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a set of data items is normally distributed with a mean of 200 and a st…
\(350\)
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reason and sense making in math who is the greatest of all time? below …
- Mean of LeBron James: \(26.71\), Median: \(26.05\), Mode: \(25.3\) - Mean of Kareem Abdul - Jabbar: \(20.58\), Median: \(21.9\), Mode: None - Mean of Michael Jordan: \(28.63\), …
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what does it mean for two events to be mutually exclusive? they are ind…
They cannot occur at the same time.
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match the correct letter with the corresponding linear feature. a b c d…
A. Positive Association B. Cluster C. Negative Association D. Outlier
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the data in the accompanying bar graph are from a random sample of 818 …
a. The margin of error is \(\pm3.5\%\) b. There is \(95\%\) confidence that between \(65.5\%\) and \(72.5\%\) of all adults in the country favor required gun registration.
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a random sample of 30 college students is selected. each student is ask…
| Hours Studied | Freq. | | ---- | ---- | | 15 | 3 | | 16 | 5 | | 17 | 3 | | 18 | 3 | | 19 | 0 | | 20 | 3 | | 21 | 2 | | 22 | 3 | | 23 | 1 | | 24 | 5 | | 25 | 3 |
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the scores on a test are normally distributed with a mean of 60 and a s…
\(90\)
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determine whether the following statement makes sense or does not make …
B. The statement makes sense because there may exist some outliers (maybe much greater or much less than the rest of the data) in the data items.
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question 13 1 pts what therapy model has been developed to enhance a se…
D. Dignity Therapy
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as the debate continued, carlas arguments became more tenuous, lacking …
B. weak
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the data in the accompanying bar graph are from a random sample of 881 …
a. The margin of error is \(\pm3.4\%\) b. There is \(95\%\) confidence that between \(50.6\%\) and \(57.4\%\) of all adults in the country favor to restrict ammunition purchases.
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not everyone pays the same price for the same model of a car. the figur…
\(49.85\)
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systolic blood pressure readings for a population of adults are normall…
The z - score is \(2.4\). The percentage of people with blood pressure readings below \(144\) is \(99.18\%\)
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review the graph and respond in the provided text box below to explain …
- Positive relationship. - Linear trend. - Outlier at (approx) \(x = 15\), \(y = 15000\). - More education is generally linked to higher salary, but with exceptions.
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use the accompanying table of z - scores and percentiles to find the pe…
a. \(42.07\%\) b. \(57.93\%\)
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the reviewer claimed that the movies melancholy tone reflected the dire…
B. gloomy
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6. which root helps reveal the meaning of ambiguous? a. ambi- (both) b.…
A. ambi - (both)
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question 5 kessler (2019) identified a sixth stage of grief: resilience…
meaning
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5. the word ambiguous means- a. clear and obvious b. confusing or uncle…
B. confusing or unclear
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4. which word is most similar in meaning to tranquil? a. serene b. turb…
A. serene
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3. the word tranquil most likely means- a. noisy b. chaotic c. peaceful…
C. peaceful
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review the graph and respond in the provided text box below to explain …
- Positive. - Linear. - Yes, an outlier at approximately (14, 15000). - There is a positive linear association between average years of education and average salary with one outli…
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question 7 (1 point) a well - defined set must be based on... o a quant…
Question 7: B. fact and not opinion. Question 8: B. All of the elements that are not in Set A, but are in the universal set.
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review the graph and respond in the provided text box below to explain …
- The graph is positive. - The graph has a linear trend. - It contains outliers. For example, there is an outlier at approximately (14, 15000) (very low - salary for its education…
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matching 4 points ch the correct letter with the corresponding linear f…
A. Positive Association, B. Outlier, C. Cluster, D. Negative Association
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review the graph and respond in the provided text box below to explain …
- Positive. - Linear. - Yes, an outlier at approximately (15, 15000). - There is a positive linear relationship between average years of education and average salary with an outli…
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review the graph and respond in the provided text box below to explain …
- Positive trend. - Linear trend. - Outliers (e.g., at 14 years: ~$18000$, at 20 years: ~$80000$). - More education generally linked to higher salary with variability.
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an engineer wants to know if producing metal bars using a new experimen…
D. \(t < - t_0,t > t_0\)
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an engineer wants to know if producing metal bars using a new experimen…
The alternative hypothesis, \(H_a\)
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question 1 (1 point) set a is a subset of set b, means that... o a both…
B. Every element in Set A is also an element in Set B.
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for the given data, (a) find the test statistic, (b) find the standardi…
c. No
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read the excerpt from the great gatsby. twenty miles from the city a pa…
a sense of artificiality in the world the narrator finds himself in.
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test the claim about the difference between two population means \\( \\…
\(0.005\)
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test the claim about the difference between two population means \\( \\…
\(z = 2.81\)
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maryvale high school is starting a freshman mentoring program. there ar…
The total number of ways to choose ten mentors is \(1961256\). The probability that the mentors will be five seniors, three juniors, and two sophomores is approximately \(0.038\)
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test the claim about the difference between two population means $mu_1$…
\(0.005\)
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test the claim about the difference between two population means \\( \\…
\(z=-2.81\)
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the graph below represents results of a survey in which students stated…
\(120 - 149\)
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use the t - distribution table to find the critical value(s) for the in…
\(1.372\)
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use the t - distribution table to find the critical value(s) for the in…
(a) \(-1.714\) (b) \(-1.895\)
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use the t - distribution table to find the critical value(s) for the in…
\(-1.714\)
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what was the range of name lengths?
\(8\)
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use the t - distribution table to find the critical value(s) for the in…
\(\pm1.356\)
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what conditions are necessary in order to use the z - test to test the …
A. The samples must be independent, B. Each population has a normal distribution with a known standard deviation, C. The samples must be randomly selected.
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questions 14 - 15 refer to the images below. 14. the source on the left…
The use of the term "casta" in the painting implies a focus on social hierarchy, which is related to the sub - field of Sociology.
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what conditions are necessary in order to use the z - test to test the …
A. The samples must be independent, B. Each population has a normal distribution with a known standard deviation, C. The samples must be randomly selected.
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in a survey of 374 coffee drinkers, it was found that 64 take only suga…
a. \(163\) b. \(245\) c. \(65\) d. \(146\) e. \(309\) For the multiple - choice: \(\{x|-3\leq x\leq2\text{ where }x\text{ is an integer}\}\) (the second option)
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what does it mean when information found from web research is valid? (1…
It is based on truth and reason.
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2 multiple choice 1 point among a group of students, 49 study physics, …
92 ### Question 3 #### Part (a)
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read this excerpt from henry fords autobiography, my life and work. it …
a website providing a timeline of Ford's life
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what is the mean of the dataset in the normal model n(352,12)? (1 point…
C. 352
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a kayak - rental company needs to replace many of its kayaks, and it wa…
77.3
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the mean height of a group of plants is 20 centimeters, with a standard…
\(42.05\) (assuming the options are percentages, and this value is closest to one of the likely intended options based on the calculation)
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question 6 (2 points) which of the following was a way for the bureau o…
Update the list of products included in the CPI more often and rapidly.
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estimate the area percentage under a normal curve to the right of a z -…
\(36.32\) (assuming the first option \(36.32\) is the correct one among the given choices)
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read this scene from the miracle worker act 2. (annie) wipes the hand c…
The stage directions show how Annie reacts to Helen.
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estimate the area percentage under a normal curve between a z - score o…
\(36.93\) (corresponds to the third option)
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read this scene from the miracle worker act 2. (annie insists, and hele…
The stage directions describe how characters react to Helen.
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multiple choice 1 point how does ses affect our society, according to t…
4. It can lead to inequities in health and resource distribution. 5. Children 6. They are 11% more likely to die from breast cancer.
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mara is given the model ( n(1400,200) ) for a set of 50 data and wants …
\(47\)