A baseball player has a batting average of $0.325$ each week of the season, with a standard deviation of $0.065$. What is the $z$ score when he bats $0.410$ one week?
A) 0.325
B) 1.308
C) 0.410
D) 1.275

Question

Quizplus · Accepted Answer

The $z$ score is calculated by subtracting the mean from the observed value and then dividing by the standard deviation: $z = \frac{0.410 - 0.325}{0.065} = 1.3077$, which rounds to 1.308.

A Baseball Player Has a Batting Average Of 0.3250.3250.325 Each Week of the Season, with a Standard Deviation Of Week

A Baseball Player Has a Batting Average Of $0.325$ Each Week of the Season, with a Standard Deviation Of Week