Given Below Are Lower and Upper Limits of Areas of the Normal

Multiple Choice

Given below are lower and upper limits of areas of the normal curve. Choose the limits that mark off the greatest proportion of the normal curve.

A) -2 $\sigma$ to - l $\sigma$
B) -l $\sigma$ to 0
C) 2 $\sigma$ to 3 $\sigma$
D) above 3 $\sigma$ .