Statistics & Probability
Data analysis, probability distributions, hypothesis testing, and statistical methods.
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how strongly do physical characteristics of sisters and brothers correl…
\(64.5\)
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the sales representative at a dry cleaning supply company tracks how mu…
1500
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at booneville consulting, the head of human resources examined how the …
5
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strongly do physical characteristics of sisters and hers correlate? the…
# Explanation: ## Step1: Identify Variables Let \( x \) be brother's height (B) and \( y \) be sister's height (S). Data points: \( (71,69), (68,64), (66,65), (67,63), (70,65), (7…
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suppose you have a histogram that is symmetric with no outliers. what m…
Mean, Standard Deviation
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a jar holds 15 beads: 10 purple, 5 orange. if 1 is randomly drawn, then…
$\frac{3}{7}$
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a bag contains 12 marbles: 7 yellow, 5 green. if 1 marble is drawn, set…
$\frac{5}{33}$
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3. the dotplot shows the number of wins for major league baseball teams…
a) The percentile for the Seattle Mariners is approximately \(13.3\) b) i) Approximately \(70\%\) of the teams won fewer games than the Washington Nationals, and approximately \(3…
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tanvi wrote down how many spelling words she practiced each day. spelli…
183
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a bag contains 15 candies: 6 red, 9 blue. if 1 is randomly drawn and ea…
$\frac{9}{35}$
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question 31 of 39 the table presents four sets of data prepared by the …
\( r_{\text{Set A}} = 0.816 \), \( r_{\text{Set B}} = 0.816 \), \( r_{\text{Set C}} = 0.816 \), \( r_{\text{Set D}} = 0.816 \)
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a bag contains 8 marbles: 5 red, 3 blue. if 1 marble is drawn, set asid…
$\frac{5}{14}$
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tanvi wrote down how many spelling words she practiced each day. spelli…
183
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a bag holds 10 pens: 4 black, 6 blue. if 1 is randomly drawn, then with…
$\frac{1}{3}$
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the manager of a deli counted the number of sandwiches sold each day. s…
15
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Question was provided via image upload.
\( \hat{y} = 8 \) (when using the regression line for Anscombe's quartet data sets to predict \( y \) for \( x = 10 \))
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the figure displays the relationship between golfers scores on the firs…
For a player who shot 80 in the first round, the predicted score is \(76.03\). For a player who shot 70 in the first round, the predicted score is \(74.39\).
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a bag contains 5 marbles: 2 red, 3 blue. if 1 marble is drawn, replaced…
$\frac{4}{25}$
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a hat has 6 coins: 5 quarters, 1 nickel. if 1 coin is drawn, replaced, …
$\frac{5}{36}$
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enter the correct answer a spinner has 4 equal sections (red, blue, gre…
\(\frac{1}{8}\)
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a jar has 8 jellybeans: 5 red, 3 green. if 1 jellybean is randomly draw…
$\frac{9}{64}$
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a jar has 8 jellybeans: 5 red, 3 green. if 1 jellybean is randomly draw…
$\frac{15}{64}$
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based on the boxplot above, identify the 5 - number summary. minimum: $…
Minimum: \(5\) \(Q_1\): \(10\) Median: \(16.5\) \(Q_3\): \(20\) Maximum: \(21\)
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score on last try: 0.4 of 1 pts. see details for more. at least one sco…
Minimum: \(10\), \(Q_1:14\), Median: \(17\), \(Q_3:18\), Maximum: \(18\)
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you join the group and go through the messages. you notice that some me…
Sharing a resource or an article related to the subject and asking for feedback from others.
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a set of data is found to have a sample standard deviation of 28. suppo…
C. wouldn't change
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using the same venn diagram: fouls misconduct unsportsmanlike tackle de…
Unsportsmanlike Tackle, Dangerous Two-Footed Challenge
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a set of data is found to have a sample standard deviation of 29. suppo…
wouldn't change.
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reading progress check submit test read riding her bike up the street t…
B. Shelly's parents care about the environment.
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this is a venn diagram listing some soccer calls that can be made by a …
Unsportsmanlike Tackle, Dangerous Two-Footed Challenge, Delaying Restart of Play, Assaulting Referee
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question 8 suppose you wish to invest money safely and are trying to de…
The company with the smaller standard deviation
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random students were asked if they think tuition costs at their communi…
C. 42.7%
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which of the following does not reveal the variation (spread) of the da…
Mean, Median, Mode
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youre playing \uno\ during the holidays with your family. your sister g…
B. 1/3 or 33.3%
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outliers have very little or no effect on which of the following? check…
Median, Mode
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equal-areas point. 3. an internet reaction time test asks subjects to c…
a) The height of the density curve is \(\frac{1}{3}\) b) The proportion of the time is \(0.5\)
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which of the following statements are true? check all that apply. the m…
- The mean is the average of all the data values. - Range is the difference between the largest and smallest value in the set. - The mode is the number (or numbers) that occurs mo…
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numerical values in this problem have been modified for testing purpose…
84.80%
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6. according to the text, why are the colors red, green, and black impo…
In Kwanzaa traditions, red symbolizes the struggle for freedom and bloodshed in the fight for justice, green represents hope, growth, and the future of the African community, and …
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question 23 of 39 numerical values in this problem have been modified f…
78.59% (rounded to two decimal places)
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muhammad said, \every muslim has to give in charity.\ the people asked,…
They should find other ways to help people.
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food fryers manufactured by a company that supplies food trucks can fry…
A. 120.7 pounds per hour to 144.1 pounds per hour
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mom week 13: box plots, frequency tables, standard deviation score: 3/1…
1) \(\bar{x}=4.8\) 2) | \(x\) | \(x-\bar{x}\) | \((x - \bar{x})^2\) | |---|---|---| | \(6\) | \(1.2\) | \(1.44\) | | \(4\) | \(-0.8\) | \(0.64\) | | \(9\) | \(4.2\) | \(17.64\) | …
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suppose a normal distribution has a mean of 79 and a standard deviation…
B. 0.84
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the candy bars produced by a manufacturing plant were randomly measured…
8.5 oz and 9.1 oz
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12b ) suppose a normal distribution has a mean of 79 and a standard dev…
B. 0.975
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question 22 of 39 numerical values in this problem have been modified f…
\( 52.9 \)
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cars in a lot were marked with 28 domestic and 17 foreign. if we are co…
$\hat{p}$ is 62.2% and $\hat{q}$ is 37.8%
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suppose a normal distribution has a mean of 79 and a standard deviation…
B. 0.16
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Question was provided via image upload.
(a) $H_0: ho = 0$ (no linear relationship), $H_1: ho ≠ 0$ (significant linear relationship) (b) $y = 60.96 + 0.16x$ (c) $r ≈ 0.84$ (d) $p$-value ≈ 0.001 (e) Reject $H_0$; p-value …
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suppose the heights of the members of a population follow a normal dist…
B. 62 inches to 68 inches
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a bakery in overland park, ks sells an average of 272 pies per month. t…
C. 68
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suppose the heights of the members of a population follow a normal dist…
C. 56 inches to 74 inches
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suppose the heights of the members of a population follow a normal dist…
A. 59 inches to 71 inches
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question 9 9a) if the mean of a normal distribution is 105, what is the…
A. 105
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suppose the sample space for a continuous random variable is 0 to 50. i…
D. 0.24
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based on the density graph below, what is the probability of a value in…
A. 40%
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a density graph for all of the possible temperatures from 60 degrees to…
A. The probability of a temperature from 90 degrees to 120 degrees
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2.3 density curves and the normal distribution name hiba - lusma - maha…
1. FALSE 2. mean; median
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the bar graph shows the rise or fall of a reservoir for the year. chang…
6 inches. increase 3 inches.
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suppose the x - axis of a density graph represents someones weight in p…
D. 28%
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the following box plot was made from the data of the number of inches o…
Minimum: 2. 3.5 This much or more rain in 25% of months: 4. 7.5 Median: 3. 5.5 Q3: 4. 7.5
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the variance is given below. \\(sigma^2 = 22.5\\) what would the standa…
A. 4.7
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3 there are 70 students in the school band. 40% of them are sixth grade…
a. The number of sixth - graders is \(28\). b. The number of seventh - graders is \(14\).
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discuss the difference between these two words: lose and loose
- "Lose" is a verb meaning to be deprived of, fail to win, or misplace. - "Loose" can be an adjective (not tight) or a verb (set free/make less tight).
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as of 2011, the following are the ages at which a countrys presidents w…
7
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one of the tests a student took consisted of 3 points with several prob…
C. 87%
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discuss the difference between these two words: lose and loose
- "Lose" is a verb meaning to be deprived of, fail to keep, or not win, pronounced /luːz/. - "Loose" is mainly an adjective meaning not firmly fixed (e.g., "loose clothing") and i…
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find the expected value of the probability experiment given: | x | p(x)…
1.9
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as of 2011, the following are the ages at which a countrys presidents w…
9
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as of 2011, the following are the ages at which a countrys presidents w…
8
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as of 2011, the following are the ages at which a country’s presidents …
| Age | Frequency | |--------|-----------| | 41-45 | 3 | | 46-50 | 7 | | 51-55 | 9 | | 56-60 | 9 | | 61-65 | 8 | | 66-70 | 6 |
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• 5 long sleeve • 7 short sleeve • 5 tank tops which bar graph below re…
W
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a bag contains five red chips, three yellow chips, and six blue chips. …
A. about 42.9%
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a professor had students keep track of their social interactions for a …
9
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a professor had students keep track of their social interactions for a …
25
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the following information is from a survey about smoking and lung disea…
- This many people in the survey did not have lung disease: 100 - This many people in the survey were smokers: 1. 60% - This many people were not smokers but had lung disease: 3. …
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a random sample of 30 college students is selected. each student is ask…
3
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a questionnaire was given to students in an introductory statistics cla…
\(160\)
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in the data from the previous problem: 88, 90, 15, 75, 95, 82, 80 what …
D. It doesn't affect the median, but it pulls down the value of the mean.
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a questionnaire was given to students. the first question asked was \ho…
\(7\)
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question 12 (2 points) listen what is 67% of 240? 160.8 3.6 16.1 27.9
160.8
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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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fill in each blank so that the resulting statement is true. data can be…
histogram, frequency
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fill in the blank so that the resulting statement is true. a sample obt…
random
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hello, ela! daily review meaningful meaning text about some topic, part…
c. by listing the different symbols of Kwanzaa
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the mathematics department of a college has 13 male professors, 9 femal…
\(\frac{11}{13}\)
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a 12-sided die is rolled. the set of equally likely outcomes is {1,2,3,…
\(\frac{11}{12}\)
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1 on a weekend, priya walked 10 km and tyler walked 8 km. a. what perce…
a. \(80\%\) b. \(125\%\)
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consider a political discussion group consisting of 10 democrats, 5 rep…
\(\frac{5}{19}\)
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in mrs wilsons geography class, the student who achieves the largest in…
a) Petro b) Petro
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the table below shows the educational attainment of a countrys populati…
\(\frac{19}{162}\)
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solve the following logarithmic equation. express irrational solutions …
The solution set is \(\{729\}\)
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you select a family with four children. if m represents a male child an…
\(\frac{1}{16}\)
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you randomly select one card from a 52-card deck. find the probability …
\(\frac{1}{13}\)
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of the 49 plays attributed to a playwright, 17 are comedies, 19 are tra…
\(13:36\)
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i-ready supporting inferences: literary text — quiz — level f \what is …
he can use the computer now
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in 6-card poker, played with a standard 52-card deck, $_{52}c_6$, or 20…
\(0.999514\)
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use the spinner shown. it is equally probable that the pointer will lan…
\(\frac{1}{12}\)
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a single die is rolled twice. find the probability of rolling a 4 the f…
\(\frac{1}{36}\)