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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adam had 820 baseball cards. he gave 25% of them to his brother. how ma…
205
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(a) a yoga instructor collected student data. she found that students w…
There is a correlation between amount of sleep and range of motion. There may or may not be causation. Further studies would have to be done to determine this. ### Part (b)
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in a race in which five automobiles are entered and there are no ties, …
\(60\)
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shoppers in a large shopping mall are categorized as male or female, ov…
\(8\)
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an election ballot asks voters to select five city commissioners from a…
\(3003\)
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for a segment of a radio show, a disc jockey can play 9 records. if the…
\(79833600\)
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a 12-sided die is rolled. the set of equally likely outcomes is {1,2,3,…
\(\frac{1}{12}\)
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which statement would a judicial activist most likely make? \interpreta…
"Interpretations of the Constitution must change because its authors could not foresee modern life."
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teachers’ salaries in connecticut the average teacher’s salary in conne…
0.0655
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analyzing box-and-whisker plots directions: use the box-and-whisker plo…
1. A. \(36\) B. \(8\) C. \(19\) D. \(50\%\) E. \(25\%\) F. (Answers may vary. For example) Maybe around \(19\) (the median) because the median represents the middle value of the d…
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the average number of moves a person makes in his or her lifetime is 12…
Part 1: 0.0027 Part 2: 0.9973
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question 83 / 254 33% firearms in households must also be put up and aw…
B-Misdemeanor A, B, or C dependent on the damage inflicted.
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which answers are correct? to open carry in texas: a-you must be a lega…
ALL OF THE ABOVE ARE CORRECT (A-I)
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unit 3 assessment what is meant by the term \impulse shopping\? compari…
B. Buying an item without giving it much thought, maybe because it’s on sale or you see it and simply love it
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rachel rides her bike home along a straight road from her friend’s hous…
Rachel is 8 miles from home: No Rachel is 90 miles from home: Yes 6 miles from home, Rachel takes a 30-minute break: No 6 miles from home, Rachel takes a 20-minute break: Yes
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many stories follow a chronological order, what does that mean? type yo…
Chronological order in stories means presenting events in the time - sequence they happen.
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what is the meaning of the underlined word in this sentence? i just don…
stairs
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what does the underlined word mean in the following sentence? ¡es el co…
B. driver
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marie started working as a waitress at an italian restaurant. the scatt…
\(50\) (The answer is an estimate based on the positive trend and spread of the scatter - plot data)
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is this a thesis statement? the government should subsidize college for…
yes
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how many significant figures are in the following number 0.003003000 ○ …
7
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816 the following table represents a sample of sale prices, in thousand…
Linear regression function: $f(p) = -1.09p + 315.23$ Correlation coefficient: $r \approx -0.99$
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the carnival is in town! 🎡🎪🍭 the scatterplot below shows the relatio…
Approximately 130 people.
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which point of view does the narrator use in the passage? the captain s…
third person
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815 stephen collected data from a travel website. the data included a h…
Linear regression equation: $\hat{y}=248.26-7.91x$ Correlation coefficient: $-0.98$ The negative sign suggests a strong negative linear relationship: as distance from Times Square…
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question 33(multiple choice worth 3 points) (lesson 7.5 lc) on an expre…
D. Turn around using the next exit
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814 the table below shows the number of hours ten students spent studyi…
Linear regression equation: $\hat{y}=5.63x + 43.35$ Correlation coefficient: 0.76 Interpretation: There is a strong positive linear relationship between hours spent studying and t…
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this road sign means image of a one way road sign with a right arrow op…
D. travel only in the direction indicated by the arrow
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question makayla’s math teacher plots student grades on their weekly qu…
B. The number of hours a student should spend on their homework to expect a score of 100 on the quiz.
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this road sign means image of railroad crossing sign stop if traffic is…
D. railroad crossing (assuming the last option is D; if options are labeled differently, adjust the identifier. Here, the last option text is "railroad crossing", so the answer is…
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mason decides to research the relationship between the length in inches…
The rate of change in the expected weight of the catfish over its length.
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question the scatter plot and line of best fit below show the length of…
The change in expected height for every one additional centimeter of femur length.
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carlos has a part - time job at an ice skating rink selling hot cocoa. …
The average change in the number of hot cocoas sold for every additional degree of the day's high temperature.
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if the divisor isnt a whole number, what do we do? move the decimal poi…
Multiply the divisor by a multiple of 10 (which means hop the decimal point until the divisor is a whole number. Then do the same amount of hops to the dividend inside the divisio…
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multiple choice 1 point a cable news show displays the results of a pol…
The poll predicts that between 48.1% and 57.9% of voters will select candidate A in the election
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20. what does civilian control of the military mean? military leaders d…
Military leaders do not have any independent authority, but are the servants of the elected representatives of the people.
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19. which of the following documents outlines the purpose of government…
Declaration of Independence
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the table shows the distribution, by age and gender, of the 30.5 millio…
\(0.02\)
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quiz no. 3 4/5 which of the following is probably not an important poin…
A detailed description of the meaning behind the company's name.
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you are dealt one card from a standard 52-card deck. find the probabili…
\(\frac{1}{2}\)
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in a race in which seven automobiles are entered and there are no ties,…
210
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of 19 possible books, you plan to take 5 with you on vacation. how many…
\(11628\)
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use the formula for $_{n}c_{r}$ to evaluate the given expression. $_{10…
\(120\)
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determine whether the following problem involves a permutation or combi…
This problem involves a permutation because the order of letters selected matters.
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use the five sentences below to answer the question. mark had told him …
6
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in how many different ways can a police department arrange five suspect…
\(120\)
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how many different arrangements of 5 letters can be formed if the first…
\(913952\)
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10. which of the following is the suffix meaning abnormal condition? - …
-osis
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16. when macbeth talks nervously about the murders, lady macbeth tells …
17. C. Macbeth 18. A. he will kill them if they don't do it 19. C. She doesn't know about it 20. B. Fleance escapes 21. B. he sees a ghost 22. A. Macduff 23. C. he will have to fa…
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shoppers in a large shopping mall are categorized as male or female, ov…
8
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a popular brand of pen is available in 3 colors and 2 writing tips. how…
6
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12 fill in the blank 8 points a box contains 5 purple marbles, 3 green …
\( \frac{1}{15} \) or approximately \( 0.07 \) ### Part b: P(both marbles are purple)
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11 fill in the blank 9 points two seniors, one from each government cla…
0.00 (or 0.28% or $\frac{1}{360}$; if we consider the decimal without strict rounding to two decimal places, 0.0028, but rounded to two decimal places, 0.00)
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10 fill in the blank 8 points a coin is tossed and a die with numbers 1…
\(\frac{1}{12}\)
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9 multiple choice 8 points which of the following in not an example of …
D. selecting two marbles one at a time without replacement
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confirming independence $p(a\\cap b)=p(a)\\cdot p(b)$ this equation is …
A) Not Independent B) Independent C) Not Independent D) Independent
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7 fill in the blank 8 points if there was only one government class, an…
The probability is \(\frac{1}{703}\) (or approximately \(0.00142\)) and this is not an example of independent events (the two events are dependent).
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number of traffic violations by month april may june july august septem…
A. expired tags
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fill in the blank 8 points two cards are selected from a deck of cards …
$\frac{2}{9}$
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cars and trucks sold month of year what was the highest number of cars …
B. 65
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5 fill in the blank 0 points a club has 25 members, 20 boys and 5 girls…
\(\frac{1}{30}\)
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determine the missing values (indicated with ?) so that events a and b …
A) \( 0.25 \) B) \( \frac{10}{21} \) (or approximately \( 0.476 \))
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the two scatter plots below show the same data set. choose the scatter …
The scatter plot on the Right
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mary beth marrs, the manager of an apartment complex, feels overwhelmed…
A. [Chart with blue D bar tallest, then red P, green G, yellow T, purple E]
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the two scatter plots below show the same data set. choose the scatter …
The Right Scatter Plot (the one with the blue border)
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the two scatter plots below show the same data set. choose the scatter …
The Right Scatter Plot (the second scatter plot shown)
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the table below shows the educational attainment of a country’s populat…
\(\frac{7}{50}\)
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the two scatter plots below show the same data set. choose the scatter …
The scatter plot on the Left
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the table shows the distribution, by age and gender, of the 28.8 millio…
\(0.03\)
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the two scatter plots below show the same data set. choose the scatter …
The scatter plot on the Right
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you are dealt one card from a standard 52-card deck. find the probabili…
\(\frac{1}{52}\)
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the two scatter plots below show the same data set. choose the scatter …
The Left Scatter Plot
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you are dealt one card from a standard 52-card deck. find the probabili…
\(\frac{1}{4}\)
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the two scatter plots below show the same data set. choose the scatter …
The scatter plot on the Left
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a 12 - sided die is rolled. the set of equally likely outcomes is {1,2,…
\(0\)
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if you draw two cards from a standard deck of 52 cards without replacem…
s: a. \(\frac{4}{663}\) b. \(\frac{4}{221}\) c. \(\frac{1}{221}\)
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a 10 - sided die is rolled. find the probability of rolling an odd numb…
\(\frac{1}{2}\)
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2 fill in the blank 9 points bag a contains 9 red marbles and 3 green m…
0.15 (or $\frac{3}{20}$, or 15%)
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your two parents have driven to work in separate cars. when they arrive…
72
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1 fill in the blank 8 points one marble is randomly drawn and then repl…
\(\frac{2}{9}\)
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at a benefit concert, seven bands have volunteered to perform but there…
\(2520\)
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use the five sentences below to answer the question. mark had told him …
6
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you need to arrange ten of your favorite books along a small shelf. how…
\(3628800\)
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in how many different ways can a police department arrange seven suspec…
\(5040\)
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in an encyclopedia of language, the author presents five sentences that…
120
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a password contains seven digits, such as 1746678. how many different p…
\(10000000\)
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is the following histogram misleading? if so, what is wrong with the gr…
Yes. The intervals on the horizontal axis are not consistent.
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the juniors and seniors at a high school were surveyed about the ages o…
About \(51\%\) of those surveyed drive new vehicles. About \(42\%\) of juniors drive new vehicles. \(23\%\) of those surveyed are seniors who drive used vehicles. Seniors account …
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taylor practiced for basketball tryouts every day for a week. at the en…
\(y=-1.5x + 16\)
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the line plot shows the number of books that 12 students read in ms. br…
A. \(5\) B. \(9\) C. \(5.25\)
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the basketball team surveyed the student body at their school to collec…
- About 55% of the girls surveyed attended the last game. - Girls made up about 29% of those surveyed. - There is evidence to support this conclusion: Girls were much less likely …
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police sometimes measure shoe prints at crime scenes so that they can l…
B. [Graph B as per the image]
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24 multiple choice 1 point find the mean, median, and mode of the set: …
24. Mean: 4, Median: 4, Mode: 4 25. -54 26. -180 27. 32 degrees warmer 28. 10 inches
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11. genetics a punnett square is a diagram that shows all possible gene…
(a) $\frac{1}{2}$ (b) $\frac{1}{4}$ (c) $\frac{1}{4}$
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which statements are true regarding the data in the table? select all t…
The correlation coefficient is - 0.44, The slope of the regression line that models this data is negative, There is a weak linear association between the variables.
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4. erik gets to choose from five cake flavors, seven icing flavors, and…
105
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women’s earnings as a percentage of men’s, for full - time wage and sal…
A. the Equal Pay Act
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match the probabilities with the correct definitions. 1. she defeats he…
1. She defeats her enemy: $\boldsymbol{\frac{4}{30}}$ 2. She is defeated: $\boldsymbol{\frac{1}{30}}$ 3. She turns her enemy into a newt: $\boldsymbol{\frac{4}{30}}$ (assuming the…
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in a different plan for area codes, the first digit could be any number…
144
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shoppers in a large shopping mall are categorized as male or female, ov…
\(8\)