Question

2. The ages of 30 students of a night school are given below:
Number of students
5
6
7
8
4
Age
15
16
17
18
19
What is the average age of these students ?
11) 16 2) 17
(3) 16.8
(4) 17.8​

Answer 1

Step-by-step explanation:

15+16+17+18+19/5=17

average =sum of given data/total no. of data

Answer 2

Answer:

number of students = 30

sum of ages of all students = 510

average age = 510 ÷ 30

= 17 ans