. Find the standard deviation for the given data. Round your answer to one more decimal place than the original data. 15, 42, 53, 7, 9, 12, 14, 28, 47

Answer 1

1. find the mean
2. find the results of (mean - each data value)
3. square each of those results, then find their sum
4. divide that sum by 9
5. take the square root of that result