Question

Calculate the mean for the following frequency distribution
Class Interval
Frequency
0-50
4
50 - 100
8
100 - 150
16
150-200
13
200 - 250
6
250 - 300
3​

Answer 1

Answer:

$.$

Step-by-step explanation:

0 - 50 4 25 100

50 - 100 8 75 600

100 - 150 16 125 2000

150 - 200 13 175 2275

200 - 250 6 225 1350

250 - 300 3 275 825

Total ⅀fi = 50 ⅀fixi = 7150

So,

→ Mean = ⅀fixi / ⅀fi

→ Mean = 7150 / 50

→ Mean = 143 (Ans.)

Hence, mean of the following frequency distribution is 143.