According to a census, approximately 5% of the population earned between $75,000 and 100,000 annually in 2008. A rand...
According to a census, approximately
5%
of the population earned between
$75,000
and 100,000
annually in 2008. A random sample of
30
people in the population was selected.
a. Use the binomial distribution to determine the probability that fewer than three individuals earned between
75,000
and
100,000
annually in 2008.
b. Use the Poisson approximation to the binomial distribution to determine the probability that fewer than three individuals earned between
75,000
and
100,000
annually in 2008.
c. How do these two probabilities compare?
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According to a census, approximately 5% of the population earned between $75,000 and 100,000 annually in 2008. A rand...
Assume that the proportion of green eyes in the world's population is approximately 080. A random...
Assume that the proportion of green eyes in the world's population is approximately 080. A random sample of thirty people is taken, and six of the thirty have green eyes. A) Using the normal approximation to the binomial, find the probability of finding six people with green eyes in a sample of thirty B) Repeat part A, but this time use the binomial distribution instead of the normal approximation. C) Compare your results from parts A and B. Does the...
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Please answer this question/explain entirely thanks!
8.9 According to the National Center for Health Statistics, as of 2012, it is estimated that 24% of adults in Missouri smoke. You wish to know the probability of selecting from this popula- tion a random sample of 30 people containing 8 or fewer smokers. a. Use a statistical program to determine the exact probability of getting 8 or fewer smok- ers. (Hint: refer to section 5.4.) b. Now use the normal approximation of...
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Spring 2020 5. Approximately 14% of the world's population speaks Chinese as their native language. (a) If we randomly select 405 people from anywhere in the world, find the mean and the standard deviation for the count of Chinese speakers in the sample. (5 points) n = YUS P .147 (b) A sample of 405 people from all people is selected, determine whether finding 33 or more people who speak Chinese in this sample would be unusual. Use the z-score...
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Assume that the proportion of green eyes in the world's population is approximately 080. A random sample of thirty people is taken, and six of the thirty have green eyes. A) Using the normal approximation to the binomial, find the probability of finding six people with green eyes in a sample of thirty B) Repeat part A, but this time use the binomial distribution instead of the normal approximation. C) Compare your results from parts A and B. Does the...
70% of all Americans live in cities with population greater than 100,000 people. If 35 Americans are randomly selected find the probability that a. Exactly 24 of them live in cities with population greater than 100,000 people. b. At most 23 of them live in cities with population greater than 100,000 people. e. At least 26 of them live in cities with population greater than 100,000 people. d. Between 20 and 27 (including 20 and 27) of them live in...
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please explain by steps! very confused
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Please answer this question/explain entirely thanks!
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