Examine the data and count the number of observations that fall into the intervals x +- s, x +- 2s, and x +-3s.
2.1, 4.4, 2.7, 32.3, 9.9, 9.0, 2.0, 6.6, 3.9, 1.6

Question

Examine the data and count the number of observations that fall into the intervals x +- s, x +- 2s, and x +-3s.
2.1, 4.4, 2.7, 32.3, 9.9, 9.0, 2.0, 6.6, 3.9, 1.6

campbell_st · Answer

well given your data set you need to calculate the mean and sample standard deviation. 


then once you have that you need to calculate the values within 1 standard deviation of the mean. 

2 standard deviations of the mean

and 3 standard deviations. 

hope this helps