A life insurance salesman sells on the average 4 life insurance policies per week. Use poisson's law to calculate the probability that in a given week he will sell (i) exactly 4 policies (ii) at least 3 policies (iii) at most 2 policies.
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Answered by
0
Answer:
The probability of selling 2 or more, but less than 5 policies is
P(2≤X<5)
=P(x
2
)+P(x
3
)+P(x
4
)
=
2!
e
−3
3
2
+
3!
e
−3
3
3
+
4!
e
−3
3
4
=0.61611
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Answered by
0
Answer:
0.61611
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