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city, in 2018 was 63...

The average number of days a house was on the market in a city, in 2018 was 63 days. Assume the time on the market follows an exponential probability distribution. Answer parts a through d.

a.

What is the probability that a randomly selected house will be on the market less than 39 days?

b.

What is the probability that a randomly selected house will be on the market between 60 and 90 days?

c.

What is the probability that a randomly selected house was on the market exactly 74 days?

d.

What is the standard deviation of the distribution?

a. The probability is nothing.

(Round to four decimal places as needed.)

b. The probability is nothing.

(Round to four decimal places as needed.)

c. The probability is nothing.

(Round to four decimal places as needed.)

d. The standard deviation is nothing days.

(Type an integer or a decimal.)

a.

What is the probability that a randomly selected house will be on the market less than 39 days?

b.

What is the probability that a randomly selected house will be on the market between 60 and 90 days?

c.

What is the probability that a randomly selected house was on the market exactly 74 days?

d.

What is the standard deviation of the distribution?

a. The probability is nothing.

(Round to four decimal places as needed.)

b. The probability is nothing.

(Round to four decimal places as needed.)

c. The probability is nothing.

(Round to four decimal places as needed.)

d. The standard deviation is nothing days.

(Type an integer or a decimal.)

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