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Sigma Mu Sigma was definitely at Lynchburg College between 1968-1972.

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13y ago

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What amount spent on books has a standardized score equal to 0.5 if the mean amount spent was 300 and the standard deviation is 100?

The formula for Z-Score is: (x-mu)/sigma. We know from the information given that Z=0.5, mu=300 & sigma=100. Solve for x and plug in the values. X=Z*sigma+mu; x=0.5*100+300 or x=350. So, $350 is amount spent on books.


Find P 9 x 15 when mu equals 12 and sigma equals 2?

0.8664


In a normal distribution with mu equals 25 and sigma equals 6 what number corresponds to z equals 3?

Z = (x-mu)/sigma or 3 = (x - 25)/6 or 18 = x - 25 or x = 42. So, for Z = 3, x = 42.


What is the value of z if a normal distribution with a mean is 6 and a standard deviation has the value of 10?

To find the value of ( z ) in a normal distribution, you use the formula ( z = \frac{(X - \mu)}{\sigma} ), where ( X ) is the value for which you want to find ( z ), ( \mu ) is the mean, and ( \sigma ) is the standard deviation. Given that the mean ( \mu = 6 ) and the standard deviation ( \sigma = 10 ), you need a specific value of ( X ) to calculate ( z ). Without a specific ( X ), the value of ( z ) cannot be determined.


If a score s equal to the mean it and z score will be?

If a score ( s ) is equal to the mean of a dataset, its z-score will be 0. The z-score is calculated using the formula ( z = \frac{s - \mu}{\sigma} ), where ( \mu ) is the mean and ( \sigma ) is the standard deviation. Since ( s ) equals ( \mu ), the numerator becomes zero, resulting in a z-score of 0. This indicates that the score is exactly at the average of the dataset.