Find the z-score for the value 79, when the mean is 81 and the standard deviation is 6. A. z = -0.33 B. z = -0.90 C. z = 0.90 D. z = -0.50

Question

asked Feb 18, 2024 121k views

1 Answer

Todd Ditchendorf · Answer 1 · 2024-02-24T17:25:59+0000

The z-score for the value 79, when the mean is 81 and the standard deviation is 6, is -0.33.

The z-score for the value 79, when the mean is 81 and the standard deviation is 6, can be calculated using the formula:

z = (x - mean) / standard deviation

Substituting the given values, we have:

z = (79 - 81) / 6 = -0.33

Therefore, the correct answer is A. z = -0.33.