Question

The grades on a history midterm at Santa Rita are roughly symmetric with u == 76 and o = 3.0. Ben scored 71 on the exam. Find the z-score for Ben's exam grade. Round to two decimal places.

Answer 1

Ц = 76

σ = 3.0

x= 71

The formula is given by;

`Z=(x-\mu)/(\sigma)`

substitute the values into the formula;

`Z=(71-76)/(3.0)`

`Z=-(5)/(3)`

Z= - 1.67