will be exceeded 10% of the time? 10. Incomes are exponentially distributed with 2 = 0.0001. What fraction of the population has income (a) <$8000? (b) >$12,000? (c) between $9000 and $12,000?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 24HP
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years? (d) What is the probability
have been in the house for eight years?
Meliona
8. The mean value of annual imports for a country is normally distributed with mean
$16 million. (a) What dollar value of
u=$30 million and standard deviation o =
imports is exceeded only 5% of the time? (b) What fraction of years have import
values between 29 and 45 million?
9. The number of customers at a bank each day is found to be normally distributed
with mean μ = 250 and standard deviation o = 110. (a) What fraction of days will
have less than 100 customers? (b) More than 320? (c) What number of customers
will be exceeded 10% of the time?
10. Incomes are exponentially distributed with 2 = 0.0001. What fraction of the
population has income (a) <$8000? (b) >$12,000? (c) between $9000 and
$12,000?
11. The number of consumers purchasing a particular item on a given day is found to
be uniform over the range (16 28). (a) What is the mean daily number of
Transcribed Image Text:years? (d) What is the probability have been in the house for eight years? Meliona 8. The mean value of annual imports for a country is normally distributed with mean $16 million. (a) What dollar value of u=$30 million and standard deviation o = imports is exceeded only 5% of the time? (b) What fraction of years have import values between 29 and 45 million? 9. The number of customers at a bank each day is found to be normally distributed with mean μ = 250 and standard deviation o = 110. (a) What fraction of days will have less than 100 customers? (b) More than 320? (c) What number of customers will be exceeded 10% of the time? 10. Incomes are exponentially distributed with 2 = 0.0001. What fraction of the population has income (a) <$8000? (b) >$12,000? (c) between $9000 and $12,000? 11. The number of consumers purchasing a particular item on a given day is found to be uniform over the range (16 28). (a) What is the mean daily number of
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