A nurse has found that when a patient calls the medical advice line claiming to have the flu, the chance that he or she truly has the flu (and not just a nasty cold) is only about 11%. Of the next 25 patients calling in claiming to have the flu, we are interested in how many actually have the flu. Let the random variable ✗ be the number of patients, out of the 25 who called the medical help line, that actually have the flu. How is X distributed? ✗~B 25 0.11 Find the probability that exactly 9 of the 25 patients actually have the flu. Find the probability that fewer than 8 of the 25 patients actually have the flu. Find the mean of the distribution. Find the standard deviation of the distribution. Part 2 of 2
A nurse has found that when a patient calls the medical advice line claiming to have the flu, the chance that he or she truly has the flu (and not just a nasty cold) is only about 11%. Of the next 25 patients calling in claiming to have the flu, we are interested in how many actually have the flu. Let the random variable ✗ be the number of patients, out of the 25 who called the medical help line, that actually have the flu. How is X distributed? ✗~B 25 0.11 Find the probability that exactly 9 of the 25 patients actually have the flu. Find the probability that fewer than 8 of the 25 patients actually have the flu. Find the mean of the distribution. Find the standard deviation of the distribution. Part 2 of 2
MATLAB: An Introduction with Applications
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
Transcribed Image Text:A nurse has found that when a patient calls the medical advice line claiming to have the flu, the chance
that he or she truly has the flu (and not just a nasty cold) is only about 11%. Of the next 25 patients calling
in claiming to have the flu, we are interested in how many actually have the flu.
Let the random variable ✗ be the number of patients, out of the 25 who called the medical help line, that
actually have the flu. How is X distributed?
✗~B
25
0.11
Find the probability that exactly 9 of the 25 patients actually have the flu.
Find the probability that fewer than 8 of the 25 patients actually have the flu.
Find the mean of the distribution.
Find the standard deviation of the distribution.
Part 2 of 2
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