Question

The following table shows the marks obtained by 48 students in a Quiz competition
Mathematics. Calculate the standard deviation.
6 7 8 9 10 11 12
3 6 9 13 8 5 4​

Answer 1

Step-by-step explanation:

please do it yourself or ask your teacher sorry l can't help you

Answer 2

Answer:

first the numbers writen 2 time cross 1

now count the numbers the answer is 12

now divide 12 from 48 answer quotient is 4.

In each class 4 students will sit