Question

1. Use the Poisson distribution to approximate the binomial distribution. b (3; 100, 0.03). 2. In...

1. Use the Poisson distribution to approximate the binomial distribution.

b (3; 100, 0.03).

2. In a city 6% of all drivers get al least a fine in a year.

Use the Poisson distribution to approximate the binomial distribution.

Determine the probabilities that between 80 drivers:

a) Al least 4 will get al least one fee in some year;

b) Al least 3 will get al least one fee in some year;

c) Some of them between 3 and 6, considering both values will get al least a fine in a year.

Homework Answers

Answer #1

1)

Mean/Expected number of events of interest: λ = 100 * 0.03

= 3

2)

a)

Mean/Expected number of events of interest: λ =                4.8

X P(X) P(>X)
0 0.0082
1 0.0395
2 0.0948
3 0.1517 0.7058

b)

X P(X) P(>X)
0 0.0082
1 0.0395
2 0.0948 0.8575

c)

X P(X)
3 0.1517
4 0.1820
5 0.1747
6 0.1398

Probability = 0.6483

Thanks in advance!

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