SOLUTION: 1.A computerized switch board in the telephone exchange receives an average 4 calls per minute. Find the probability that – (a) the interval of time between successive calls at an

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Question 239792: 1.A computerized switch board in the telephone exchange receives an average 4 calls per minute. Find the probability that –
(a) the interval of time between successive calls at any time is less than 10 seconds.
(b) at least 5 calls are received in one minute.
2.. By the method o0f least squares, fit a straight line for the following data:
x 1 2 3 4 5
y 14 13 9 5 2
3.Find the moment generating function of random variable which is uniformly distributed over (–a, a). Evaluate E(X2n).

Answer by sanjay_sp008(2) About Me  (Show Source):
You can put this solution on YOUR website!
A computerized switch board in the telephone exchange receives an average 4 calls per minute. Find the probability that –
(a) the interval of time between successive calls at any time is less than 10 seconds.
(b) at least 5 calls are received in one minute.