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. Calculate and interpret the standard deviation of X.

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

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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