E BUSINESS STATISTICS Jaggia Business Communicating BA201 pr

E BUSINESS STATISTICS Jaggia: Business Communicating BA201 pring20 er 5 Question 9 (of 11) 10.00 points Assume that X is a binomial random variable with n 6 and p 0.68. Calculate the following probabilities. (Round your intermediate calculations and final answers to 4 decimal places.) a. PX 5) b, PX 4) gheck my work Ledecences ebook resources ezto mheducation.com/hm.tpx

Solution

n=6 p = 0.68

a) P(X=5) = 6C5 (0.68)⁵(0.32) = 0.2792

-----------------------------------------------------------------------------

b) P(X=4) = 6C4 (0.68)⁴(0.32)² = 0.3284

----------------------------------------------------------

c) P(X>=4) = 6C4 (0.68)⁴(0.32)²+6C5 (0.68)⁵(0.32)+(0.32)⁶

= 0.7064