If about two-thirds of the cases in a research study fall within 1 standard deviation from the mean,and 95 percent within 2 standard deviations,researchers know that their data form a

Question

Quizplus · Accepted Answer

A normal distribution is characterized by the majority of cases falling within 1 standard deviation from the mean, and most cases falling within 2 standard deviations. Therefore, if researchers observe this pattern in their data, they can conclude that the data form a normal curve.

If About Two-Thirds of the Cases in a Research Study