2 question

Eighteen individuals are scheduled to take a driving test at a particular DMV ofce on a certain day, eight of Whom will be taking the test for the rst time. Suppose that six of these individuals are randomly assigned to I particular examiner, and let X be the number among the six who are taking the test for the rst time. a.What kind of a distribution does X have (name and values of all parameters)? b. Compute P(X = 2), P(X S 2), and P(X 3 2). 0. Calculate the mean value and standard deviation of X. Suppose that in a population of voters in a certain region 28% are in favor of particular bond issue. Nine hundred randomly selected voters are asked if they favor the bond issue. a) a. Verify that the sample proportion P " computed from samples of size 500 meets the condition that its sampling distribution be approximately normal