Discrete Distributions-Poisson [ACET (Actuarial Common Entrance Test) Statistics]: Questions 1 - 5 of 11

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Question 1

Question MCQ▾

A bank has an average random arrival rate of 3.2 customers every 4 minutes. What is the probability of getting exactly 10 customers during an 8-minute interval?

Choices

Choice (4)Response

a.

b.

c.

d.

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Question 2

Question MCQ▾

Which probability distribution is suitable for calculating the number of air accidents in some unit of time?

Choices

Choice (4)Response

a.

Binomial

b.

Normal

c.

Geometric

d.

Poisson

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Question 3

Question MCQ▾

Exclusive Vines import Argentinian wine into Australia. They՚ve begun advertising on Facebook to direct traffic to their website where customers can order wine online. The number of click- through sales from the ad is Poisson distributed with a mean of 12 click through sales per day. The probability of getting exactly 10 click through sales in the first day is given by-

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 4

Question MCQ▾

If X follows Poisson distribution such that Find the mean & variance

Choices

Choice (4)Response

a.

2,1

b.

2,2

c.

1,2

d.

1,1

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Question 5

Question MCQ▾

If the standard deviation of a Poisson variable X is , then the probability that X is strictly positive is

Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

Edit