Find the mean of each number's digits like in the example the mean of 9704 is 5. Then you have 18 values for the means. Find the mean of the 18 values.
Hello everyone! I don't know how to find mean of sample means! Here I did only frequency table.Here is the task( in attachment)
In other words, as in the example, "average" the four digits: the average of the digits of the first number, 1665, is (1+ 6+ 6+ 5)/4= 18/4= 4.5. After you have done that for all 18 numbers, average those 18 numbers- add them up and divide by 18.