Suppose that the probability that the life of a battery will exceed 36 months is 0.21 . You take a random sample of 177 batteries. How many of the batteries would you expect will last Longer than 36 months? Round to one decimal if needed. . Question 18 v Suppose that 5% of a population is infected with a virus. You test a random sample of 900 members of this population. How manyr of the people in the sample would you expect to have the Virus? Round to one decimal if needed. . Question 19 v Suppose that in basketball you are successful on 87% of your free throw attempts. You take 19 free throws. Round your answers to three decimals if needed. a. How many of the attempts do you expect will be successful? b. What is the probability that you will make between (inclusive) 15 and 18 free throws? c. What is the probability that you make all your attempts? Question 20 Suppose that 10% of a population carries antibodies to a virus. For a research project, you need 40 people with antibodies to the virus. How many people should you test so that the expected number of people with the antibodies is 40? Round up to a whole number