What percentage of scores falls within three standard deviation of the mean?Choose one99.5%50%95%65%

n the normal distribution, approximately what percentage of test scores will fall between 2 and 3 standard deviations above the mean?a.2.1%b.34.1%c.13.6%d.68%

In a normal distribution, what percentage of the data falls within 3 standard deviations of the mean?A.99.7%B.34%C.95%D.68%SUBMITarrow_backPREVIOUS

In a normal distribution, what percentage of data lies within one standard deviation of the mean? Group of answer choicesApproximately 95%Approximately 99.7%Exactly 100%Approximately 68%

Based on +/-3 standard deviations, what is the probability that a sample would fall within this range if only random variation was present?Multiple Choice99.7%77.8%66.7%95.5%

In a normal distribution, how much of the data falls within one standard deviation?99.7%95%100%68%