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Statistics 22 Online
OpenStudy (anonymous):

It's about a binomial distribution. Assume that a fair coin is tossed 5 times. What is the probability of getting 4 or 5 heads in total?

OpenStudy (perl):

so you want P ( X >= 4) = P ( X = 4 ) + P ( X = 5 )

OpenStudy (perl):

= 5 C 4 * .5^5 + .5^5

OpenStudy (perl):

thx

OpenStudy (perl):

the final answer I got .1875

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