The following data represents the GPA of a sample of 15 students enrolled in a math class. Use technology and round to 4 decimal places. 

GPA
2.5
3.99
2.38
3.2
1.95
2.61
3.62
3.41
2.2
2.3
2.64
2.28
3.63
2.04
3.43

(a) Find the first quartile.

(b) Find the third quartile.

(c) Find the mean.

(d) Find the median.

(e) Find the range.

(f) Find s.

(g) Find the interquartile range.

(h) What are the lower and upper limits to find outliers? 

     LL: UL:

(i) Find s².