Suppose a distribution has a mean of 80 and standard deviation of 10. It is found that 84 percent of the values in the data set lie between 70 and 90. This implies that the distribution is not bell-shaped.

Question

Quizplus · Accepted Answer

A bell-shaped distribution, or normal distribution, typically has about 68% of the data within one standard deviation from the mean. Here, 84% within one standard deviation suggests a different distribution shape.

Suppose a Distribution Has a Mean of 80 and Standard