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i Secure https:/www.mathod tuentRyentomework , aspx momework Id=4866 395 368questorilde 2299,thedstrueerd= 503 32668 centerwr-yes MAT103-301 (Summer 2018) Statistics I (CRN 60114) Camille Grignon & 6/29/18 7:34 PM Homework: HW Set 06 (Sect. 4.1, 4.2) save Score: 0 of 12 pts 420 of 23 (20 complete) HVN Score: 55%, 55 of 100 pt wor 4.2.23 E Question Help Sixty percent of consumers prefer to purchase electronics online You randonly select 8 consumers. Find the probability that the number of consumers who prefer to purchase electronics online is (a) exactly five, (b) more than five, and (c) at most five (a) Find the probability that the number that prefer to purchase electronics online is exactly five P(5)- Round to three decimal places as needed.) Enter your answer in the answer box and then click Check Answer. 2 remaining Clear All

Explanation / Answer

Solution:-

p = 0.60, n = 8

a) The probability that number that prefer to purchase electronics online is exactly five is 0.2787.

x = 5

By applying binomial distribution:-

P(x,n) = nCx*px*(1-p)(n-x)

P(x = 5) = 0.2787

b) The probability that number that prefer to purchase electronics online is more than five is 0.3154.

x = 5

By applying binomial distribution:-

P(x,n) = nCx*px*(1-p)(n-x)

P(x > 5) = 0.3154

c) The probability that number that prefer to purchase electronics online is atmost five is 0.6846.

x = 5

By applying binomial distribution:-

P(x,n) = nCx*px*(1-p)(n-x)

P(x < 5) = 0.6846

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