Question

The grades on a math midterm at springer are roughly symmetric with = 68 and o = 4.5.

brandon scored 71 on the exam.
find the z-score for brandon's exam grade. round to two decimal places.

Answer 1

To find the z-score for Brandon's exam grade, substitute the given values into the z-score formula and calculate. The z-score for Brandon's exam grade is approximately 0.67.

Step-by-step explanation:

To find the z-score for Brandon's exam grade, we need to use the formula:

z = (x - μ) / σ

where x is the individual value (in this case, Brandon's score), μ is the mean of the distribution, and σ is the standard deviation.

Substituting the given values, we have:

z = (71 - 68) / 4.5 = 0.67

Rounding to two decimal places, the z-score for Brandon's exam grade is approximately 0.67.