Statistics and Probability — Test

Question 1

Which statement is true about the data set?

Revolt · Accepted Answer

The value of the first quartile is 13.

Question 2

The human resources manager at a company records the length, in hours, of one shift at work, cap x He creates the probability distribution. What is the probability that a worker chosen at random works at least 8 hours?

Revolt · Accepted Answer

0 point 8 4

Question 3

How do the mean and median change from plot 1 to plot 2?

Revolt · Accepted Answer

The mean decreases, and the median remains the same.

Question 4

Each person takes turns rolling two dice. If the sum is odd, the person playing odds gets points equal to the sum of the roll. If the sum is even, the person playing evens gets points equal to the sum of the roll. Note that the points earned is independent of who is rolling the dice. If Jessica is challenged to a game of Sums, which statement is accurate in every aspect in guiding her to the correct choice of choosing to play odds or evens?

Revolt · Accepted Answer

cap e times evens is equal to cap e times odds because the different probabilities and values end up balancing out, creating a fair game. Therefore, Jessica may choose whichever she likes.

Question 5

In which year was the actual population of Center City most different from the value predicted by this model?

Revolt · Accepted Answer

1992

Statistics and Probability — Test Answers

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