ProbabilityHard
Question
At a telephone enquiry system the number of phone cells regarding relevant enquiry follow Poisson distribution with an average of 5 phone calls during 10-minute time intervals. The probability that there is at the most one phone call during a 10-minute time period is
Options
A.
B.
C.
D.
Solution
P(X = r) = 
P(X ≤ 1) = P (X = 0) + P (X = 1)
= e-5 + 5 × e-5 =
P(X ≤ 1) = P (X = 0) + P (X = 1)
= e-5 + 5 × e-5 =
Create a free account to view solution
View Solution FreeMore Probability Questions
Five horses are in a race. Mr. A selects two of the horses at random and bets on them. The probability that Mr. A select...For two events A & B, which of the following is/are correct-...The probability of getting head and tail alternatively in three throws of a coin (or in a throw of three coins) is-...A coin is tossed three times. The probability that in the second toss head does not occur, is-...A has 3 tickets in a lottery containing 3 prizes and 9 blanks; B has 2 tickets in a lottery containing 2 prizes and 6 bl...