Question

1. The assessment marks for a project made by 30 children are given below.
1,4,4, 3, 4, 5, 2, 1,3,4,5; 1,3,4, 1,3,4,1,2,2,5,1,3,4,5,2,3,3,3,5,
Step​

Answer 1

Answer:

Step-by-step explanation:

        xf​    fx cf

0 1 0 1

1 3 3 4

2 6 12 10

3 10 30 20

4 5 20 25

5 5 25 30

∑f=30 ∑fx=90

Mean =∑f∑fx​=3090​

         =3

Median = size of (2N​)th observation

            = size of (230​)th observation

            = size of 15th observation

            =3

Mode =3 marks (as highest frequency is 10.)