Solve the problem. Round results to the nearest hundredth.
-The mean of a set of data is 4.68 and its standard deviation is 2.83. Find the z score for a value of 9.38.
A)1.49
B)1.66
C)1.83
D)1.96

Question

Quizplus · Accepted Answer

The z score is calculated using the formula $z = \frac{(X - \mu)}{\sigma}$, where $X$ is the value, $\mu$ is the mean, and $\sigma$ is the standard deviation. Substituting the given values: $z = \frac{(9.38 - 4.68)}{2.83} = 1.66$.

Solve the Problem