Each of the following lists has an average of 50. For which one is the spread of the numbers around the average biggest?smallest?
a. 0, 20, 40, 50, 60, 80, 100
b. 0, 48, 49, 50, 51, 52, 100
c. 0, 1, 2, 50, 98, 99, 100
Guess which of the following two lists has the larger SD. Check your guess by computing the SD for both lists.
a. 9, 9, 10, 10, 10, 12
b. 7, 8, 10, 11, 11, 13