Question
alculate the sample mean and sample variance for the following frequency distribution of heart rates for a sample of American adults. If necessary, round to
alculate 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.
| Class | Frequency |
|---|---|
51-58 | 4 |
59-66 | 10 |
67-74 | 2 |
75-82 | 12 |
83-90 | 5 |
Sample Mean=
Sample Variance =
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Sample Size Determination In Clinical Trials With Multiple Endpoints
Authors: Takashi Sozu, Tomoyuki Sugimoto, Toshimitsu Hamasaki, Scott R Evans
1st Edition
3319220055, 9783319220055
