Question: COURSE: STATISTICAL METHODS APPLIED TO ENGINEERING - GENERAL REVIEW OF STATISTICS The percentage of customers who give a good opinion to the after-sales service is

COURSE: STATISTICAL METHODS APPLIED TO ENGINEERING - GENERAL REVIEW OF STATISTICS The percentage of customers who give a good opinion to the after-sales service is 23%. If a sample of 10 customers is taken: (a) What is the probability that 3 customers give a bad opinion regarding after-sales service? b) What is the expected number of customers who give a good opinion of the after-sales service?

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