Question

You’re interested in calculating the standard deviation of the exam scores of a national standardised test to see if many people scored close to the mean or not. Use the following dataset.
Test Taker Score
1 20
2 40
3 60
4 60
5 75
6 80
7 70
8 65
9 70
10 90

Answer 1

Answer:

12233697655555+44337889906544507666677----- how much