The Scores of Students on a Standardized Test Are Normally

Multiple Choice

The scores of students on a standardized test are Normally distributed with a mean of 300 and a standard deviation of 40. Using the fact that the middle 50% of the data falls within 0.67 standard deviations from the mean, find the probability that a randomly chosen student scores below 273.2 on the test.

A) 0.025
B) 0.25
C) 0.165
D) 0.125