For a normal distribution with a mean of 4 and a standard deviation of 2, the value 5 has a z value of
A) -0.5
B) 0.5
C) 1.5
D) 2.5

Question

Quizplus · Accepted Answer

The formula for calculating the z-score is:

z = (x - mu) / sigma

where x is the observed value, mu is the mean, and sigma is the standard deviation.

In this case, x = 5, mu = 4, and sigma = 2. So, we can calculate the z-score as:

z = (5 - 4) / 2 = 0.5

Therefore, the answer is choice B.

For a Normal Distribution with a Mean of 4 and a Standard