The data sets below include four random samples of size 8 that represent the age of the mother at the time of her first birth. Which of the following data sets do you think will have the least variation?
Data Set A: 23, 25, 24, 34, 31, 28, 24, 37
Data Set B: 18, 39, 20, 23, 23, 20, 33, 32
Data Set C: 26, 37, 29, 39, 34, 29, 35, 32
Data Set D: 34, 29, 32, 38, 38, 37, 36, 35
a. Data Set A
b. Data Set B
c. Data Set C
d. Data Set D
