Probability · JEE Main previous year questions

2006 1 question

1. Q282006 · 29 Apr 2006 · Shift 1

   At a telephone enquiry system the number of phone calls 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 :

   1. A.$\frac{6}{5^e}$
   2. B.$\frac{5}{6}$
   3. C.$\frac{6}{55}$
   4. D.$\frac{6}{e^5}$
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   Answer: D