kindly help me with this question

(1) A survey was conducted in a certain organization to assess the ratings of job performance of workers. The following data was gathered at the end of the survey: Job Excellent Unsatisfactory Very Good Average Below Good Performance Average No. of 15 15 66 20 45 40 Workers What is the median rating of job performance of workers? (2) An organization has two power generators operating independently. The probability that a specific generator is available when needed is 0.96. a. What is the probability that neither is available when needed? b. What is the probability a generator is available when needed? (3) A large retailer purchases a certain kind of product from a manufacturer. The manufacturer indicates that the defective rate of the product is 3% in a shipment. The inspector of the retailor randomly picks 20 items of the product from a shipment. What is the probability that there will be three (3) defective items? (4) A study of bank customers stated that 64% of all financial consumers believe banks are more competitive today than they were five years ago. Suppose 23 financial consumers are selected randomly. What is the probability that ten or fewer believe this