6) What is Σ (x-x)2 for JR?
A. 10.3
B. 9.20
C. 8.02
D. 9.50

7) What is Σ (x - x)2 for JP?
A. 43.09
B. 43.12
C. 43.20
D. 43.24

8) What is the standard deviation for scores of JR?
A. 1.22
B. 1.32
C. 1.42
D. 1.52

9) What is the standard deviation for scores of JP?
A. 3.29
B. 3.26
C. 3.33
D. 3.30

10) Who do you think deserves the treat of their father?
A. JP
B. JR
C. father
D. none​