Your company's internal auditor believes that 10% of the company's invoices contain errors.To check this theory,20 invoices are randomly selected and 5 are found to have errors. What is the probability that of the 20 invoices written,five or more would contain errors if the theory is valid?
A).0433
B).0319
C).9567
D).8660

Question

Quizplus · Accepted Answer

P(x F1F1F1S1F1F1F10 5)= (.0319)+ (.0089)+ (.0020)+ (.0004)+ (0001)= .0433

Your Company's Internal Auditor Believes That 10% of the Company's