A recent Wall Street Journal article indicated that 35% of American teenagers us

Question

A recent Wall Street Journal article indicated that 35% of American teenagers use Pandora's online radio service. Suppose a sample of 25 American teenagers are selected. Based on this information, generate a cumulative binomial probability distribution in the given space on the Pandora sheet in this workbook to answer the following questions. Each orange numerical answer cell below MUST reference Excel output cells in the Pandora Sheet.

1.0000

9a)What is the probability that exactly 14 American teenagers do not use Pandora's online radio service?

9b)what is the probability if more than 35% but at most 75% of these American teenagers use Pandora's online radio service?

9c)What is the probability if no less than 7 American teenagers use Pandora's online radio service?

Binomial n 25 p 0.35 xi P(X<=xi) 0 0.0000 1 0.0003 2 0.0021 3 0.0097 4 0.0320 5 0.0826 6 0.1734 7 0.3061 8 0.4668 9 0.6303 10 0.7712 11 0.8746 12 0.9396 13 0.9745 14 0.9907 15 0.9971 16 0.9992 17 0.9998 18 1.0000 19 1.0000 20 1.0000 21 1.0000 22 1.0000 23 1.0000 24 1.0000 25

1.0000

Explanation / Answer

probability that exactly 14 American teenagers do not use Pandora's online radio service

P(x=14) =0.0161

9c) probability if no less than 7 American teenagers use Pandora's online radio service

P(x>7) = 0.6939

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