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 researcher in alaska measured the age (in months) and the weight (in …
C. 0.59
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question 5 1 pts the market systems answer to the fundamental question …
"Through the profit potential that encourages development of new technology."
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for a random sample of 20 professional athletes, there is a strong, lin…
D. -0.87
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question 1 the term dollar votes in a market system means voters may be…
C. consumers "vote" for certain products to be produced by how they spend their incomes.
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a restaurant manager collected data on the number of customers in a par…
C. The parties with a larger number of customers are associated with the longer times elapsed until the party left the restaurant.
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2 mark for review the table shows several values of x and their corresp…
Approximately $0.98$
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5. a sample of university employees are surveyed about their primary me…
B. The slice for “Walking” would be about 5% of the pie chart, making it the smallest slice.
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a botanist found a correlation between the length of an aspen leaf and …
E. Even with a correlation value of 0.94, it is possible that the relationship could still be better represented by a nonlinear model.
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2 mark for review which of the following is the best description of a p…
D. As the value of one of the variables increases, the value of the other variable tends to increase.
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5. a sample of university employees are surveyed about their primary me…
D. The combined slices for "Bus" and "Train" would take up a little more than one - third of the pie chart.
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question 3 assume an economy is incurring unemployment. the effect of r…
move the level of actual output on to the economy's production possibilities curve.
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4. the time in minutes taken by each adult in a sample to solve a probl…
D. 51.1%
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read the passage from chapter 17 of the prince. nevertheless he ought t…
C. that a prince should only be cruel when necessary
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3. during the first seven days in march 2025, high temperatures were re…
E. None of the above statements are correct.
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2. sixty students in a chemistry course are given a surprise pop quiz t…
D. skewed to the right because only a small number of students had high quiz scores.
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find the indicated probability. a multiple - choice test has 10 questio…
0.250
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the probability that an individual is left - handed is 0.12. in a class…
mean: 4.8; standard deviation: 2.06
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what is the equation of the line of best fit for the following data? ro…
A. $y = 0.894x+0.535$
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which of the following statements accurately describes the result of a …
c. Fewer taxed workers than beneficiaries means that more money is being drawn from the system for the money put in. This leaves a shortage of money in the system making benefits …
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the data set provided below provides the heights in feet of 31 felled b…
| Height | Frequency | | ---- | ---- | | [60,65) | 0 | | [65,70) | 5 | | [70,75) | 8 | | [75,80) | 8 | | [80,85) | 6 | | [85,90) | 4 |
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one statistic calculated for pitchers in baseball is called the earned …
B. The interquartile range
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use the box - and - whisker plot to identify the five - number summary,…
Min: - 1.8 Max: 1.8 $Q_1$: - 0.6 $Q_2$: 0.0 $Q_3$: 0.6 IQR: 1.2
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a clue that helps the reader to understand a words meaning by using a c…
analogy
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in the data set below, what is the interquartile range? 2 3 3 3 6 7 7
4
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read the passage. music and the brain from the beginning of recorded hi…
There are many reports on the topic.
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read the excerpt from animal farm and the passage on the history of the…
C. Napoleon uses Squealer to communicate his ideas to the animals, just as Stalin used his assistants to spread propaganda to the people.
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2 identify the correct figure of speech. then write the meaning on the …
Irony. The meaning is that it is unexpected and contrary to what one would assume for an Olympic swimmer to drown while on vacation in a place known for water activities.
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which claim is the most effective for the argument that the minimum age…
Changing the minimum driving age to 18 would mean safer roads for everyone, since less - experienced drivers are more likely to have accidents.
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cleo is writing an essay arguing that her school should open at 8:30 a.…
Kennedy High School should open at 8:30 a.m. instead of 7:30 because students would get an extra hour of sleep, improving their health and brain function.
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context clues 3.1 directions: read each sentence and determine the mean…
1. Definition: Relating to all people. Clues: "universally acknowledged truth" and the general context about a common belief. 2. Definition: Very unusual or remarkable. Clues: Con…
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score on last try: 1.67 of 5 pts. see details for more. all submitted p…
(a) $y = 549.47\times1.04^{x}$ (b) $y=103.26x + 256.26$ (c) Exponential
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select the word that means very sad and hopeless. aspiring writers and …
despondent
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during one shift, the express lane clerk recorded how many times custom…
13
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read tys topic sentence for a paragraph: there are even a few cases whe…
Wess, a collie, jumped in front of his owner Lily and allowed the snake to bite him to protect Lily.
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which of the following reveals the impact kennedys assassination had on…
Millions of people watched his funeral on TV.
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determine whether the given procedure results in a binomial distributio…
Not binomial: the trials are not independent; Not binomial: there are more than two outcomes for each trial
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1. which one of the following statements about graphical displays is co…
B. In a bar graph, all bars should have the same width in order to ensure a fair visual comparison across categories.
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given the following set of numbers, calculate the median: 12, 7, 5, 19,…
B. 9.5
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question 2 given the following set of numbers, calculate the mean: 12, …
10.2
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from the probability distribution, find the mean and standard deviation…
$\mu = 1.568;\sigma = 1.111$
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1. which of the following are noun - forming suffixes? a. -ance b. -tio…
1. D. all of the above 2. C. Impunity is formed by the prefix im-, the root pun, and the noun suffix -ity. It is a noun that means "without punishment."
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determine whether the following is a probability distribution. if not, …
Not a probability distribution. The sum of the \(P(x)\)'s is not 1.
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given the following set of numbers, calculate the median: 12, 7, 5, 19,…
A. 9
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determine whether the following is a probability distribution. if not, …
Not a probability distribution. One of the \(P(x)\)'s is negative.
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question 5 2 pts for which type of the variables, is the mode the only …
Nominal
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question 4 for a variable, if its mean = median = mode, what distributi…
Normal distribution
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question 3 2 pts given a variable with 10 scores: 4, 6, 7, 9, 11, 12, 1…
C. 11.7
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question 2 2 pts given a variable with 10 scores: 4, 6, 7, 9, 11, 12, 1…
11.5
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question 1 2 pts which of the following refers to the most frequently o…
A. Mode
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find the indicated probability. express your answer as a simplified fra…
0.490
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question 3 identified segments of the market that a business wants to h…
A. Target Markets
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read the following text then answer the questions at the end. when your…
It contributes to a nostalgic and light - hearted tone in the essay.
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find the indicated probability. you are dealt two cards successively (w…
$\frac{4}{663}$
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find the indicated probability. if a person is randomly selected, find …
$\frac{31}{365}$
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find the indicated probability. if a person is randomly selected, find …
$\frac{31}{365}$
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write the equation of the linear model. $hat{y}=-0.418x + 7.93$ if you …
1. Predicted fiber content for 3 - gram sugar cereal: $6.676$ grams 2. Residual for 9 - gram sugar and 6 - gram fiber cereal: $1.832$ grams 3. For $r^{2}$: Numerical value can't b…
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find the z - score for the value 51, when the mean is 56 and the standa…
A. $z=-1$
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a meteorological office keeps records of the annual precipitation in di…
2.87
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e) write the equation of the linear model. f) if you pick up a cereal a…
For part (f): Substitute $x = 3$ into the linear model $\hat{y}=b_{0}+b_{1}x$ to get the predicted fiber content. For part (g): First find $\hat{y}$ for $x = 9$ using the linear m…
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the scatter plot shows the average monthly temperature, x, and the mont…
(a) $\$66.25$ (b) $\$97.50$ (c) $\$1.25$
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unit 2 - exploring two variable data hw 3 - linear regression name: luc…
a) Yes. The points show a somewhat linear trend with no strong curvature. b) Slope: $b_1\approx - 0.418$. For every one - gram increase in sugar content, the fiber content is expe…
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read the quote by jane addams. \the settlement then, is an experimental…
Hull House
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1. due to high rates of covid - 19, many people are affected. the impac…
| Fraction | Percent | Number of People (based on 6000 people) | Equivalent Fraction (use 6000 as the denominator) | |--|--|--|--| | $\frac{1}{2}$ | 50% | 3000 | $\frac{3000}{6000…
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question 7 \selective benefits\... are government programs that distrib…
are incentives that interest groups make available only to those people who are members of their organizations.
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use everything you know about the data, r = -0.42, your scatterplot, an…
No. The prediction using 110 was extrapolation and r is also weak.
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using the same data, it was found that the regression line or line of b…
75.8
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a sample of 10 mlb teams is given below, showing total errors vs wins. …
the correlation is negative and weak
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it’s all the same part a: writing a fraction as a percent to write a fr…
$1/2 = 50\%$ $1/4 = 25\%$ $3/4 = 75\%$ $1/3\approx33\%$ $2/3\approx67\%$ $1 = 100\%$
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the boxplot was created using a sample of salaries for lpns. match the …
1. $\$33,000$ 2. $\$49,000$ 3. $\$39,000$ 4. $\$43,000$ 5. $\$45,000$
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question 22 (2 points) are either extremely high or extremely low data …
C. Outliers
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at a city pool, the mean number of patrons who come is 81 per day with …
Number of patrons has more variability.
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for a set of data with a mean of 32 and a standard deviation of 4, cheb…
First question: C. 24 and 40 Second question: B. -1.5
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the grades for the trigonometry exam are listed below. find the range. …
18
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frayer model write the selected word. identify characteristics of the w…
Definition: Highly developed, refined or perfected through practice. Characteristics: Polished, skilled, precise. Examples: A well - honed argument, a well - honed skill. Non - ex…
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a random sample of 30 malls shows the number of stores each one contain…
The modal class is 26 - 30. The mean is 25.5.
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the scores on a recent statistics exam are shown below. which student c…
(Without seeing the full - clarity of the options, we can't give a specific option. But the correct plot should have 6 | 4 9; 7 | 3 3 7; 8 | 6 6 9; 9 | 1 8 where the left - hand s…
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question 12 (2 points) how many data values are in this histogram? ques…
22 (closest option to the sum we calculated considering possible errors)
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based on context clues, what is the meaning of the word informal in the…
C. friendly and relaxed
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based on context clues, what is the meaning of the word concise in the …
A. short
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based on context clues, what is the meaning of the word repugnant in th…
O gross or distasteful
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based on context clues, what is the meaning of the word heinous in the …
hateful
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a recent statistics exam yielded the following 25 scores. construct a g…
1: 2
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question 8 (2 points) important formulas and tables pdf an advertisemen…
B. detached statistics
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question 7 (2 points) if you were told that a class of twenty was quest…
cluster sampling
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a ______________ variable has values that are characteristics or attrib…
A. qualitative
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which branch of statistics would report that in 2010 a total of 68,905 …
C. descriptive statistics
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which of the following correctly describes the relationship between a s…
A. A sample is a group of subjects selected from a population to be studied
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question 1 (2 points) in the study of statistics, a variable is a chara…
Question 1: subject Question 2: A sample is a subset of a population.
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read this phrase from allen ginsbergs \a supermarket in california.\ th…
The narrator is remarking that trees make the night darker.
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language development: word study. identify the choice that best answers…
A. The wolf made a loathsome sound when it saw its mate.
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read this excerpt from a visit from the goon squad. at last he found re…
A. Does technology help or hinder meaningful communication?
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luiss ice cream store sales were down 15 percent this summer. the owner…
First question: management theory Second question: Organizational behavior
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which excerpt from harrison bergeron best illustrates irony? hazel had …
And she had to apologize at once for her voice, which was a very unfair voice for a woman to use. Her voice was a warm, luminous, timeless melody.
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which of the following fields is not a field from which ob draws? accou…
Question 1: vocational counseling Question 2: indirect blindness
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there is no longer any room for hope. if we wish to be free—if we mean …
It emphasizes and connects his points to one logical conclusion.
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in exercises 3 - 10, evaluate the function when x = -2, 0, and 5. (see …
When $x=-2$, $f(-2)=4$; when $x = 0$, $f(0)=6$; when $x = 5$, $f(5)=11$.
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rights of citizens in court quick check assess the meaning of the sixth…
The Sixth Amendment provides protections for citizens in a court of law.
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acts 4 and 5 you just finished romeo and juliet! good work. it is time …
B. Romeo is saying that even death cannot ruin Juliet's looks. She is still beautiful, with color in her cheeks and lips.
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in exercises 3 - 10, evaluate the function when x = -2, 0, and 5. (see …
When $x=-2$, $f(-2)=4$; when $x = 0$, $f(0)=6$; when $x = 5$, $f(5)=11$ ### 4. $g(x)=3x$
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you just finished romeo and juliet! good work. it is time to think abou…
C. The audience knows she is alive, so Romeo's words about her looking alive are ironic.