B- The marketing department modelled the probability of the ability of the parent to pay more than 1500 JOD/year with a binomial probability distribution, where the probability of paying more than 1500 JOD/year is = 0.73. For a population of 1000 families, if you choose a sample of 30 families, address the following:: 1. What is the probability of having exactly 20 student that would pay more than 1500? 2. What is the probability of having no student that would pay more than 1500?