In: Statistics and Probability
The following is a sample of 20 measurements.
10 7 6 12 11 9 8 13 11 11 12 6 8 7 15 9 12 6 10 10
Compute the Sample mean (x), Sample variance (s2 ), and the Sample standard deviation (s).
(round to two decimal places)
Count the number of measurements in the intervals
x ±s, x ±2s, x ±3s.
Express each count as a percentage of the total number of measurements.