Question: The probabilities that a player will get 5 to 10 questions right on a trivia quiz are shown below. Find the mean, variance, and standard

The probabilities that a player will get 5 to 10 questions right on a trivia quiz are shown below.
Find the mean, variance, and standard deviation for the distribution.

5 6 78 9 10 P(X) 0.05 0.2 0.4 0. 0.15 0.1

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