Ana is a dedicated Skee Ball player (see photo in Exercise 4) who always rolls for the

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Ana is a dedicated Skee Ball player (see photo in Exercise 4) who always rolls for the 50-point slot. The probability distribution of Ana’s score X on a randomly selected roll of the ball is shown here. From Exercise 8, μX = 23.8.

Score 10 20 30 40 50 Probability 0.32 0.27 0.19 0.15 0.07


a. Find the median of X.

b. Compare the mean and median. Explain why this relationship makes sense based on the probability distribution.


Exercise 8.

Ana is a dedicated Skee Ball player (see photo) who always rolls for the 50-point slot. The probability distribution of Ana’s score X on a randomly selected roll of the ball is shown here.

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The Practice Of Statistics

ISBN: 9781319113339

6th Edition

Authors: Daren S. Starnes, Josh Tabor

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