9.4, 9.9, 9.9, 9.9, 10, 10.2, 10.2, 10.5
The mean and the standard deviation of numbers are 10 and .3 respectively. What percent of the 8 numbers are within 1 standard deviation of mean?
1) 90%
2) 85%
3) 80%
4) 75%
5) 70%
I actually don't understand what the question is asking. Can someone please explain and the best approach for this question? Many Thanks.
The mean and the standard deviation of numbers are 10 and .3 respectively. What percent of the 8 numbers are within 1 standard deviation of mean?
1) 90%
2) 85%
3) 80%
4) 75%
5) 70%
I actually don't understand what the question is asking. Can someone please explain and the best approach for this question? Many Thanks.
