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Probability question

2006 · Shift 0 · Q64

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PYQ Library
JEE Main
Mathematics
Probability
2006 · Shift 0 · Q64

Probability question

2006 · Shift 0 · Q64

JEE MainMathematicsProbabilityMCQ+4 / −1

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 :

A
${6 \over {{5^e}}}$
B
${5 \over 6}$
C
${6 \over 55}$
D
${6 \over {{e^5}}}$

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