Answer to Question #68874 in Statistics and Probability for joseph

Question

7. out of 2000 families with 4 children, how many would you expect to have 1 or 2 girls, given that the probability of a male birth is 0.5____

8. A set X has a elements, a second set Y has b elements and a third set Z has c element, the number element from the Cartesian product of the three set ________


9. A special case of the gamma distribution in which λ =1/2and n replaced by n/2, where n is a positive integer is called the ________ distribution
standard
What is the variance of a binomial distribution with n trials and u probability of success?

A bus starts with 6 people and stops at 10 different stops, how many different ways can the 6 people depart if no two passenger can depart at the same bus stop ____