Find the standard deviation for the following samples 1. 10 scores, x =855, x = 17,800. 2. One hundred families were surveyed, and the number of children x was recorded for each family. The results are as follows: x 0 1 Frequency 36 23 17 14 3 5 6 4 3. The numbers of hours worked last week by employees at San Rafael Plant have been grouped in the following frequency distribution. Hours Number of Workers 26-30 5 31-35 16 36-40 40 41-45 50 46-50 44 51-55 45