High blood pressure has been identified as a risk factor for heart attacks and strokes. The proportion of U.S. adults with high blood pressure is 0.3. A sample of 31 U.S. adults is chosen. Round the answer to at least four decimal places.

A)Is it appropriate to use the normal approximation to find the probability that more than 47% of the people in the sample have high blood pressure? also what is n(1-P)

B) A new sample of 83 adults is drawn. Find the probability that more than 41 % of the people in this sample have high blood pressure.

C)Find the probability that the proportion of individuals in the sample of 83 who have high blood pressure is between 0.20 and 0.32.

D)Find the probability that less than 21%of the people in the sample of 83 have high blood pressure.

E)Would it be unusual if more than 41% of the individuals in the sample of 83 had high blood pressure?