Calculate the sample variance and sample standard deviation for the following frequency distribution of heights in centimeters for a sample of 8-year-old boys. If necessary, round to one more decimal place than the largest number of decimal places given in the data.
Class | Frequency |
---|---|
116.1 - 120.0 | 35 |
120.1 - 124.0 | 33 |
124.1 - 128.0 | 39 |
128.1 - 132.0 | 48 |
132.1 - 136.0 | 14 |
What is the sample variance and sample standard deviation?
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