20. The mean age of people in a large conference room is 20 years and the standard deviation is 2 years. What range of a
Posted: Sun Jul 10, 2022 10:42 am
20. The mean age of people in a large conference room is 20 years and the standard deviation is 2 years. What range of ages will contain the middle 95% of the people in this room? a. 18-20 b. 18-22 C. d. 16-24 20-24