Question Help Find the indicated probabilities using the geometric distribution,

Question

Question Help    Find the indicated probabilities using the geometric distribution, the Poisson distribution, or the binomial distribution. Then determine if the events are unusual. If convenient, use the appropriate probability table or technology to find the probabilities. A football player completes a pass 69.7% of the time. Find the probability that (a) the first pass he completes is the second pass, (b) the first pass he completes is the first or second pass, and (c) he does not complete his first two passes.
(a) P( the first pass he completes is the second pass) =

Question Help    Find the indicated probabilities using the geometric distribution, the Poisson distribution, or the binomial distribution. Then determine if the events are unusual. If convenient, use the appropriate probability table or technology to find the probabilities. A football player completes a pass 69.7% of the time. Find the probability that (a) the first pass he completes is the second pass, (b) the first pass he completes is the first or second pass, and (c) he does not complete his first two passes.
(a) P( the first pass he completes is the second pass) =

Question Help    Find the indicated probabilities using the geometric distribution, the Poisson distribution, or the binomial distribution. Then determine if the events are unusual. If convenient, use the appropriate probability table or technology to find the probabilities. A football player completes a pass 69.7% of the time. Find the probability that (a) the first pass he completes is the second pass, (b) the first pass he completes is the first or second pass, and (c) he does not complete his first two passes.
(a) P( the first pass he completes is the second pass) =

Explanation / Answer

go into calculator of geometric distribution and plug in .697 for p and 2 for x value.

you get .0.211191

a)P( the first pass he completes is the second pass) = 0.2112

b) the first pass he completes is the first or second pass is P( X,< =1) = P(x=0)+P(x=1)

same as above except x value is 1. answer is: .697 add this to .2112 and get: .9082

c) he does not complete his first two passes is 1-0.9082 = 0.0918

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