Question No 7 Sudama is the manager of the electronics section of a departmental store. He has noticed that the probability of a customer, who is just browsing, buying something is 0.4. Suppose that 5...

Extracted text: Question No 7 Sudama is the manager of the electronics section of a departmental store. He has noticed that the probability of a customer, who is just browsing, buying something is 0.4. Suppose that 5 customers browse in the electronics section each hour. Using this information answer the following questions : (i) What is the probability that at least one browsing customer will buy something during a specified hour ? (ii) What is the probability that at least four browsing customers will buy something during a specified hour ? (iii) What is the expected value and variance of the distribution in question?