- 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 1 (9.6 KiB) Viewed 70 times
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
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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
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