Question

5) The number of the students in a class are divided in groups according to their heights and
tabulated in Table 3.1.G:
110-115
115-150
150-155
160-165 165-170
Heights (in cm)
Number of students
15.5-100
20
7
8
10
Table 3.1.6
What is the average height of the class (in cm)? (Correct up to 1 decimal place)​

Answer 1

Step-by-step explanation:

= -7+8+10+20+6+4

6

= 41

6

= 6.833

6.833 is the average height.