Properties of Probability Distributions Answers
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1
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Which of the following describes the probability distribution below?
A
The median is greater than the mean, and the majority of the data points are to the left of the mean.B
The median is greater than the mean, and the majority of the data points are to the right of the mean.C
The mean is greater than the median, and the majority of the data points are to the left of the mean.D
The mean is greater than the median, and the majority of the data points are to the right of the mean.2
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The number of siblings each student at a softball game has is recorded. The graph below shows the probability distribution of having any number of siblings, X, for a randomly selected student. Which number of siblings is least likely?
A
0 siblingsB
3 siblingsC
4 siblingsD
5 siblings3
A spinner has two equal sections, one green and one orange. The spinner is spun three times, resulting in the sample space S = {GGG, GGO, GOG, OGG, GOO, OGO, OOG, OOO}. If the random variable X represents the number of times orange, O, is spun, which graph represents the probability distribution?
A
A probability distribution is shown. The probability of 0 is 1; 1 is 3; 2 is 3; 3 is 1.
B
A probability distribution is shown. The probability of 0 is 0.13; 1 is 0.38; 2 is 0.38; 3 is 0.12.
C
A probability distribution is shown. The probability of 0 is 0.12; 1 is 0.25; 2 is 0.5; 3 is 0.12.
D
A probability distribution is shown. The probability of 0 is 0.12; 1 is 0.5; 2 is 0.25; 3 is 0.12.
4
Which of the following probability distribution types has a mean, median, and mode that are all equal?
A
constantB
symmetricC
positively skewedD
negatively skewedDid you find these answers helpful?
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