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  3. in a statistics class the standard deviation of th

In a statistics class the standard deviation of the heights of all students was 3...

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In a statistics class the standard deviation of the heights of all students was 3 8 inches The standard deviation of the heights of males was 3 4 inches and the standard deviation of females was 3 3 inches Why is the standard deviation of the entire class more than the standard deviation of the males and females considered separately Choose the correct answer below COL OA The distribution of the heights for the entire class generally has more spread than the distribution of the heights of the individual sexes OB The smaller sample size results in a smaller sample standard deviation OC There is more dispersion in the heights of the male and female samples than the heights of the entire class OD The sample sizes of the male students and female students are less than the sample size of the entire class

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