The following data give the number of patients who visited a walk-in clinic on each of 20 randomly selected days.
24 |
38 |
27 |
19 |
33 |
23 |
30 |
42 |
25 |
27 |
28 |
32 |
38 |
29 |
39 |
25 |
36 |
21 |
34 |
39 |
Carry out all calculations exactly, round to 2 decimal places the final answers where it is necessary.
a. Calculate the range, variance, and standard deviation for these data.
Therefore Range = 23
Variance = 44.97
Standard deviation = 6.71
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