Question

8. Find the mean of the following frequency distribution:
Class
10 - 20
20-30
30-40
40-50
50 - 60
60-70
Frequency
2
10
40
25
13
10​

Answer 1

Answer:

mean is : sum of all observation upon total no. of observation

2 +10+40+25+13+10. upon 6

Answer 2

Answer:

16.666

Step-by-step explanation:

2+10+40+25+13+10 ÷ 6

= 100÷6

16.666

(We divide 100 by 6 because there are 6 frequencies)

Hope it helps :)