Question

Calculate the standard deviation of marks of a student given below.
30 43 45 55 68 69 75​

Answer 1

Answer:

1) 30+13=43

2) 43+2=45

3) 45+10=55

4) 55+13=68

5) 68+1=69

6) 69+6=75

Answer.... .....

Answer 2

Answer:

solution by standard deviation