SOLVED: Let x be the mean of a random sample of size 50 drawn from population with mean 112 and standard deviation 40. Find the mean and standard deviation of X Find
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SOLVED:(a) find the mean, variance, and standard deviation of the probability distribution, and (b) interpret the results. The histogram shows the reviewer ratings on a scale from 1 (lowest) to 5 (highest)
SOLVED:X is a normally distributed random variable with mean 57 and standard deviation 6 . Find the probability indicated. a. P(X<59.5) b. P(X<46.2) c. P(X>52.2) d. P(X>70)
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A certain experiment conducted was normally distributed. The mean value is 50 and the standard deviation is 1,000. What is the probability of getting x-values between 44 and 55? - Quora
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