Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.) A USE SALT H = 22; o = 3.4 P(x 2 30) = 0.4052 Need Help? Watch It Master It Read It

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Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.)
A USE SALT
µ = 22; o = 3.4
P(x 2 30) = 0.4052
Need Help?
Read It
Watch It
Master It
Transcribed Image Text:Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.) A USE SALT µ = 22; o = 3.4 P(x 2 30) = 0.4052 Need Help? Read It Watch It Master It
Assume that IQ scores are normally distributed, with a standard deviation of 15 points and a mean of 100 points. If 115 people are chosen at random, what is the probability that the sample mean of IQ scores will not differ
from the population mean by more than 2 points? (Round your answer to four decimal places.)
A USE SALT
0.8164
Need Help?
Read It
Watch Iit
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Transcribed Image Text:Assume that IQ scores are normally distributed, with a standard deviation of 15 points and a mean of 100 points. If 115 people are chosen at random, what is the probability that the sample mean of IQ scores will not differ from the population mean by more than 2 points? (Round your answer to four decimal places.) A USE SALT 0.8164 Need Help? Read It Watch Iit Submit Answer
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