With a normal distribution or bell-shaped curve, ±1.96 standard deviations describes the range in which what percent of the area underneath the curve is found?
a. 68%
b. 90%
c. 99%
d. 100%
e. 95%
Answer: e. 95%
With a normal distribution or bell-shaped curve, ±1.96 standard deviations describes the range in which what percent of the area underneath the curve is found?
a. 68%
b. 90%
c. 99%
d. 100%
e. 95%
Answer: e. 95%