Round to 0.001 of the correct answer.

QUESTION 9 The time (in minutes) between telephone calls at an insurance claims ofce has the following exponential distribution. f(x)=0.55e'0'55x, for x 2 0 Calculate the P(29 secodns 26.2). 10 points Save Answer QUESTION 12 10 points Save Answer Suppose X is a normal random variable having H = 30 and 0= 2. Find the value b such that P(X>b)=0.9452. QUESTION 13 10 points Save Answer Suppose X is a normal random variable having H = 30 and 0= 2. Find the value b such that P(X