Standard Deviation: Bell Shaped Distribution
Normal，t and Binomial Distributions
July 9, 2019Minimum Sample Size for Camcorders
July 9, 2019Suppose the datahave a bell shaped distribution with a meanof 30 and a standard deviationof 5. Use the empirical rule to determine the percentage of data within each of the following ranges: 20 to 40, 15 to 45, and 25 to 35.
20 to 40, since (40-30)/5=(30-20)/5=2 which means values lie within 2 standard deviations of the mean, by empirical rule, about 95.45% of the values lie within 2 …
The solution gives detailed steps on determining the percentage of data using empirical rule.
