Statistics & Probability
Data analysis, probability distributions, hypothesis testing, and statistical methods.
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independent practice while analyzing a data set, a researcher notices t…
Confounding
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independent practice in a study to determine the effectiveness of a new…
It is an experiment.
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independent practice a researcher wants to know how a new diet affects …
Matched Pairs Design
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independent practice for his statistics class, a research student decid…
It is not an experiment. It is an observational study.
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debra is playing a carnival game. she is blindfolded while she throws a…
(a) \(11:1\) (b) \(1:11\)
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listed below are the numbers of hurricanes that occurred in each year i…
The range of the sample data is \(19.0\) hurricanes.
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independent practice a statistics student wants to determine the averag…
Randomization
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independent practice mrs. davis teaches statistics. she has 2 versions …
A randomized block design
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rafael will randomly select 3 shirts from his closet and pack all 3 shi…
D. 0.18
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below are the jersey numbers of 11 players randomly selected from a foo…
A. Jersey numbers are nominal data that are just replacements for names, so the resulting statistics are meaningless.
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the state lottery board is examining the machine that randomly picks th…
(a) \(0.102\) (b) \(0.1\) (c) The larger the number of trials, the greater the likelihood that the experimental probability will be close to the theoretical probability.
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shoppers were surveyed about their spending for holiday shopping. the s…
The amount shoppers spent typically varies by about $125$ from the mean.
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below are the jersey numbers of 11 players randomly selected from a foo…
\(1208.9\)
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question 8 (multiple choice worth 1 points) (04.02 lc) anabelle collect…
Superman
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below are the jersey numbers of 11 players randomly selected from a foo…
Sample standard deviation \(=34.9\)
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question 7 (multiple choice worth 2 points) (04.05 mc) determine the eq…
\(y =-\frac{2}{3}x+4\) (the second option)
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the parallel dotplots below display the girths (belly circumference) of…
The standard deviation for the distribution of girths is about the same for both male and female pigs (This is incorrect based on analysis, but if we assume a wrong - dot - plot i…
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some teenagers collected trash for a beach cleanup. the data for the nu…
4.66 pounds
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a box of led light bulbs was tested to see how long the light bulbs las…
The lifetime of the light bulbs typically varies by about five years from the mean.
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customers at a certain car wash can choose between 2 plans: gold and br…
\(\frac{3}{20}\) (Option E)
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question 4multiple choice worth 1 points) (04.01 lc) a data set lists t…
Line plot, because the data is numerical.
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question #9 a simple random sample of ten subjects from a population is…
Any group of ten subjects has the same chance of being the selected sample. # Question #10
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question #7 describe the sampling technique used in the study below. a …
Stratified Sampling # Question #8
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bill is going to watch a movie in his collection. he has 5 action movie…
\(\frac{3}{4}\)
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question #5 a sales representative wishes to survey her client base of …
Simple Random Sampling # Question #6
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a bag contains seven balls labeled 1 through 7. one ball will be random…
\(\frac{3}{7}\)
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question #3 an internet site includes a poll to their web page asking v…
Convenience # Question #4
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a bag with 12 marbles has 3 blue marbles, 4 yellow marbles, and 5 red m…
\(\frac{3}{4}\)
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question #1 in a study of uga students awareness of world issues, a tel…
Question #1: C. A convenience sample Question #2: Stratified
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a bag has six balls labeled a, b, c, d, e, and f. one ball will be rand…
Sample space: \(\{A,B,C,D,E,F\}\) Event of choosing a letter from \(D\) to \(F\): \(\{D,E,F\}\)
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below are the jersey numbers of 11 players randomly selected from a foo…
\(95.0\)
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as an introduction to probability, a student is asked to roll a fair, s…
1.41
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each of the 104 locations of a hotel chain is in 1 of 4 regions. the ta…
C. \(\frac{5}{17}\)
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identify the symbols used for each of the following: (a) sample standar…
a. grams (\(g\)) b. grams (\(g\)) c. grams squared (\(g^2\)) d. grams squared (\(g^2\))
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identify the symbols used for each of the following: (a) sample standar…
a. \(s\) b. \(\sigma\) c. \(s^{2}\) d. \(\sigma^{2}\) Units: - Standard deviation (sample and population): grams (\(g\)) - Variance (sample and population): grams squared (\(g^{2}…
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people at a library were asked how many states they had visited. below …
If the missing data value were \(50\), the range of the data would change substantially.
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the 159 heights of males from a data set of body measurements vary from…
The approximation is accurate because the error of the range rule of thumb's approximation is less than \(1.4\) cm.
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a random sample of 10 subjects have weights with a standard deviation o…
The variance of the sample data is \(161.3916\) kg².
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a line that models the data is given by the equation ( y = -1.62x + 18 …
A) The predicted wait time when there are 9 people on staff is \(3.42\) B) The slope is \(-1.62\). It means that for each additional staff member, the wait time decreases by \(1.6…
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7. conflict theorists argue that laws and norms: a. reflect a social co…
7. B. Are created to benefit those in power 8. D. Retreatism
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the parallel dotplots below display the number of scholarship applicati…
The range for the number of submitted scholarships is the same for both schools (since range \(A=\) range \(B = 6\)). The statement “There is a smaller standard deviation for the …
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4. according to robert mertons strain theory, innovation occurs when: a…
4. B. People accept goals but use illegitimate means to achieve them 5. A. Differential Association Theory 6. C. A parent grounding their child
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some teenagers collected trash for a beach clean - up. the data for the…
15 pounds
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which of the following statements is true about the iqr, range, and sta…
The IQR is the most resistant to extreme values.
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the number 2/3 can mean which of the following? 2 parts of size 3 each …
2 parts of size \(1/3\) each.
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match up as many words and meanings as you can. check this exercise aga…
1. n. disguise - to change your appearance to hide your identity 2. i. mask - a covering for the face 3. k. neighborhood - a district or area where people live 4. b. shout - to ye…
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fraction basics the number 4/8 can mean which of the following? 4 parts…
4 parts of size \(1/8\) each.
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sample 2 interpret a scatter plot roshelle asked 10 friends how many ho…
The scatter - plot shows a positive association. This suggests that, on average, as the number of minutes a player plays increases, the number of points the player scores also inc…
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step 1 draw a scatter plot. a scatter plot is a graph in the coordinate…
For the \(x\) - axis (age): start at \(10\) with an interval of \(1\). For the \(y\) - axis (number of entries): start at \(8\) with an interval of \(1\).
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example 1 construct a scatter plot luciana analyzes the data collected …
(12,9)
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understanding meanings read the following sentences. if the word in bol…
1. C 2. C 3. C 4. Incorrect. New sentence: "The unremitting rain made the ground muddy." 5. C 6. C 7. C 8. C 9. C 10. C 11. Incorrect. New sentence: "She is an extrovert who loves…
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the census bureau reports that 82% of americans over the age of 25 are …
(a) Mean = 1115.2, Standard deviation $\approx14.17$ (b) neither
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the census bureau reports that 82% of americans over the age of 25 are …
(a) Mean = $1115.2$, Standard deviation $\approx14.13$ (b) NEITHER
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if ( x ) is a binomial random variable, compute the mean, the standard …
(a) \(\mu = 4\), \(\sigma^{2}=0.8\), \(\sigma\approx0.894\) (b) \(\mu = 4.5\), \(\sigma^{2}=0.45\), \(\sigma\approx0.671\) (c) \(\mu = 0.5\), \(\sigma^{2}=0.45\), \(\sigma\approx0…
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what excerpt from act iii of hamlet supports the conclusion that hamlet…
Hamlet: Is this a prologue, or the posy of a ring? Ophelia: 'Tis brief, my lord. Hamlet: As woman's love.
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cerpt from act iii of hamlet. what means this, my lord? marry, this is …
mischief
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prizes and the chances of winning in a sweepstakes are given in the tab…
a. \( 0.0371625 \) b. \( - 0.3028375 \)
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if ( x ) is a binomial random variable, compute ( p(x) ) for each of th…
\(0.3529\)
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9) the 2025 class is sponsoring a school dance. the function ( p(t)=8t …
A. When 20 tickets are sold, the class has a loss of 40 dollars. B. When 25 tickets are sold, the class breaks even (neither makes a profit nor incurs a loss). C. When 70 tickets …
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this table shows a proportional relationship between x and y. what is t…
\(18.09\)
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find the indicated area under the curve of the standard normal distribu…
\(68.26\)
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assume that a randomly selected subject is given a bone density test. t…
\(0.9582\)
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what role did chinese officials play in the yuan government? they were …
They were allowed to hold only low - level jobs within the government.
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what is the domain of this scatter plot? {1, 2, 3, 4, 5} {-1, 1, 2, 3} …
C. {1, 2, 3, 5}
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a literary symbol is an object that takes one or more meanings beyond i…
figurative
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what does hamlet mean when he refers to the \pangs of disprizd love\? ○…
heartache
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what does hamlet mean by \shuffled off this mortal coil\? dying living …
dying
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which of these adaptations of the excerpt is most likely to portray ham…
The actor playing Hamlet speaks slowly and deliberately, weighing the meaning of every word as he goes along.
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fill - in - the - blank questions: the rise of ghana the ghana empire c…
trade; gold; 300; preserving; camels; iron; Muslims; monopoly; rivers; Mediterranean
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what role did chinese officials play in the yuan government? they were …
They held many important positions to help manage the empire.
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what role did chinese officials play in the yuan government? they held …
They were allowed to hold only low - level jobs within the government.
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iconology is a the meaning of symbols and images in a piece of work b t…
C. the study of the meaning and imagery in art in its broader cultural or artistic context
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text structure tuesday date: in mexico, they celebrate el dia de los mu…
B. an altar for the deceased loved ones
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directions. find the average (mean) for each set of numbers. round to t…
1. \(6\) 2. \(15\) 3. \(11.5\) 4. \(5\) 5. \(32.5\) 6. \(12.5\) 7. \(12\) 8. \(60\) 9. \(8\) 10. \(7.8\) 11. \(22\) 12. \(13.8\) 13. \(60\) 14. \(5\) 15. \(142.5\) 16. \(8\) 17. \…
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21. the table shows the weekly profits of a fruit vendor. what is the m…
\(-48\)
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1. find the area of the shaded region. the graph depicts the standard n…
\(0.1736\)
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8: read the following excerpt from the passage, then choose the correct…
B. Ladybugs do things that help gardens.
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find the mean of the integers. 19. -3, -8, 12, -15, 9 20. -54, -32, -70…
The mean of \(-3,-8,12,-15,9\) is \(-1\). The mean of \(-54,-32,-70,-25,-65,-42\) is \(-48\)
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find the mean of the integers. 19. -3, -8, 12, -15, 9
\(-1\)
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2. the graph shows the amounts of almonds, in grams (g), for different …
Yes, the number of knots is proportional to the number of rows. Because the ratio of the number of knots to the number of rows (equal to the number of strings minus 1) is constant.
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diego made a graph of two quantities that he measured and said, \the po…
I **disagree** with Diego because measurements are not perfect and the relationship **can** be proportional.
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a. about how much water was in the pool after 25 minutes? about gallons…
a. \(300\) b. \(35\) c. \(15\)
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read the passage from chapter 8 of the prince. agathocles, the sicilian…
The evidence uses stories of historical figures to support the claim.
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the following list gives the number of siblings for each of 12 students…
\(0,2,4\)
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italian tours offers a daily sightseeing trip around florence. the list…
\(26\)
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(a) which class had a smaller range of test scores? (b) which class had…
(a) Class B (b) Class A (c) Class A (d) Class B
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rachel asked 10 students how many courses they have taken so far at her…
\(20\)
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what characterizes secondary sources? a. general overview b. direct acc…
1. a. General overview 2. c. Currency 3. d. Primary sources
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read the sentences below, filling in the blanks with items from this li…
1. nonfiction 2. main idea 3. supporting evidence 4. chronological 5. tone 6. credibility 7. cause and effect
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what is the best way to use analogical evidence? a. to replace all othe…
c. To clarify a point by comparing it to something similar c. To share personal stories
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identify the numbers in each of the following statements as measured or…
- **Measured**: - The distance from Denver, Colorado to Houston, Texas is 1720 km. - A patient has a mass of 67.5 kg. - **Exact**: - A surgeon performed 6 surgeries this month. - …
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question 4 of 8 what does \pay yourself first\ mean? select a response.…
Put money in your savings account before you pay other expenses
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this graph shows the amount of rain that falls in a given amount of tim…
The slope of the line is \(2.5\). This means that \(2.5\) mm of rain falls every \(1\) hour.
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what do you know? question 4 of 5 what does \pay yourself first\ mean? …
Put money in your savings account before you pay other expenses.
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given a standardized normal distribution, what is the probability that …
\(0.0505\)
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given a standardized normal distribution, what is the probability that …
0.0329
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question 2 given a standardized normal distribution, what is the probab…
\(0.0253\)
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question 10 given a normal distribution with a mean of 100 and a standa…
0.9821
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question 9 true or false: the probability that a standard normal variab…
True
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question 9 true or false: the probability that a standard normal variab…
True