Question

In a national basketball​ association, the top​ free-throw shooters usually have probability of about 0.80 of...

In a national basketball​ association, the top​ free-throw shooters usually have probability of about

0.80 of making any given free throw. Complete parts a through c.

c.

Find the probability that the player made all 10 free​ throws, 99 free​ throws, and more than 77 free throws.

The probability that the player made all

10 free throws is....

Homework Answers

Answer #1

This is a binomial distribution.

n = 10

p = 0.8

P(X = x) = 10Cx * 0.8x * (1 - 0.8)10-x

a) P(X = 10) = 10C10 * 0.810 * 0.20 = 0.1074

b) P(X = 9) = 10C9 * 0.89 * 0.21 = 0.2684

c) P(X > 7) = P(X = 8) + P(X = 9) + P(X = 10)

                  = 10C8 * 0.88 * 0.22 + 10C9 * 0.89 * 0.21 + 10C10 * 0.810 * 0.20
                  = 0.6778

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