Mathematics, 08.09.2019 20:10 lasrdw

Calculate the sample standard deviation and sample variance for the following frequency distribution of final exam scores in a statistics class. if necessary, round to one more decimal place than the largest number of decimal places given in the data.
final exam scores
class frequency
61 - 68 3
69 - 76 14
77 - 84 2
85 - 92 14
93 - 100 8

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Calculate the sample standard deviation and sample variance for the following frequency distribution...