4.) Which of the following set of grades will illustrate meon deviation of 22
A. 81, 81, 81, 81
B. 86, 84, 82, 80
C. 80.81.83.84 0.78.78.84.84
5.) Which of the following set of observations will illustrate mean of 6 and standard deviation of 5.338
A. 8,8,8,8
B. 3, 5, 7, 9
C.8.8.4.4
0.9.8.7.4
2​