Question

stuck on these!
-find the sample variance of the running time for the males.
-Find the sample standard deviation of the running time for the males.
-Find Q1 for the running times for the males
-Find Q3 for the running times for the males
- Find the Interquartile Range (IQR) of the running times for the males.
- Provide the frequency distribution table of the running times for the males using six classes
Males
23.86
24.77
25.21
28.08
24.00
25.04
25.24
33.07
24.71
25.20
26.78

Answer 1

q1 = 24.71 q3= 26.78 and iqr= q3-q1

Answer 2

the others require a lot of work