In the following problem, check that it is appropriate to use the normal approximation to the binomial. Then use the normal distribution to estimate the requested probabilities. What are the chances that a person who is murdered actually knew the murderer? The answer to this question explains why a lot of police detective work begins with relatives and friends of the victim! About 65% of people who are murdered actually knew the person who committed the murder. t Suppose that a detective file in New Orleans has 64 current unsolved murders. Find the following probabilities. (Round your answers to four decimal places.) A USE SALT (a) at least 35 of the victims knew their murderers 0.9668 (b) at most 48 of the victims knew their murderers 0.9676 (c) fewer than 30 victims did not know their murderers 9668 know their murderers

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In the following problem, check that it is appropriate to use the normal approximation to the binomial. Then use the normal distribution to estimate the requested probabilities.
What are the chances that a person who is murdered actually knew the murderer? The answer to this question explains why a lot of police detective work begins with relatives and friends of the victim!
About 65% of people who are murdered actually knew the person who committed the murder.t Suppose that a detective file in New Orleans has 64 current unsolved murders. Find the following
probabilities. (Round your answers to four decimal places.)
A USE SALT
(a) at least 35 of the victims knew their murderers
0.9668
(b) at most 48 of the victims knew their murderers
0.9676
(c) fewer than 30 victims did not know their murderers
.9668
(d) more than 20 victims did not know their murderers
.6870
Transcribed Image Text:In the following problem, check that it is appropriate to use the normal approximation to the binomial. Then use the normal distribution to estimate the requested probabilities. What are the chances that a person who is murdered actually knew the murderer? The answer to this question explains why a lot of police detective work begins with relatives and friends of the victim! About 65% of people who are murdered actually knew the person who committed the murder.t Suppose that a detective file in New Orleans has 64 current unsolved murders. Find the following probabilities. (Round your answers to four decimal places.) A USE SALT (a) at least 35 of the victims knew their murderers 0.9668 (b) at most 48 of the victims knew their murderers 0.9676 (c) fewer than 30 victims did not know their murderers .9668 (d) more than 20 victims did not know their murderers .6870
In the following problem, check that it is appropriate to use the normal approximation to the binomial. Then use the normal distribution to estimate the requested probabilities.
Do you try to pad an insurance claim to cover your deductible? About 37% of all U.S. adults will try to pad their insurance claims! Suppose that you are the director of an insurance adjustment office.
Your office has just received 126 insurance claims to be processed in the next few days. Find the following probabilities. (Round your answers to four decimal places.)
A USE SALT
(a) half or more of the claims have been padded
.0001
(b) fewer than 45 of the claims have been padded
.3483
(c) from 40 to 64 of the claims have been padded
.9061
(d) more than 80 of the claims have not been padded
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Transcribed Image Text:In the following problem, check that it is appropriate to use the normal approximation to the binomial. Then use the normal distribution to estimate the requested probabilities. Do you try to pad an insurance claim to cover your deductible? About 37% of all U.S. adults will try to pad their insurance claims! Suppose that you are the director of an insurance adjustment office. Your office has just received 126 insurance claims to be processed in the next few days. Find the following probabilities. (Round your answers to four decimal places.) A USE SALT (a) half or more of the claims have been padded .0001 (b) fewer than 45 of the claims have been padded .3483 (c) from 40 to 64 of the claims have been padded .9061 (d) more than 80 of the claims have not been padded Need Help? Read It Watch It
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