Find the z-score of a particular measurement given the mean and standard deviation.

Problem

The grades on a chemistry midterm at Springer are normally distributed with mu, equals, 67 and sigma, equals, 2, point, 0.
William scored 66 on the exam.
Find the z-score for William's exam grade. Round to two decimal places.
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, p, i or 2, slash, 3, space, p, i
Get first 4 correct, or 5 in a row.