Question: Calculate the sample mean and sample variance for the following frequency distribution of heart rates for a sample of American adults. If necessary, round to

Calculate the sample mean and sample variance for the following frequency distribution of heart rates for a sample of American adults. If necessary, round to one more decimal place than the largest number of decimal places given in the data.

Heart Rates in Beats per MinuteClassFrequency

51-58 5

59-66 6

67-74 15

75-82 14

83-90 12

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