Question

The daily wages of Ranjit in a month are shown in the following table. Calculate the mean of his daily wages.

Daily wages (in `)	120	130
No. of days	4	5

1. 120.11
2. 128.77
3. 125.55
4. 130.22

Answer 1

Correct Answer - Option 3 : 125.55

Given:

For calculating the mean daily wage, we have to prepare the following table:

Formula use:

Means  = (Sum of wages/number of days)

Means  = (sum of fx)/number of f

Calculations:

For calculating the mean daily wage, we have to prepare the following table: 

Daily wages (in `) (x)	120	130
No. of days (frequency = f)	4	5
f × x	480	650

⇒ Means  = (480 + 650)/9

⇒ Means  = 1130/9

⇒ Means  = 125.55

∴ The mean of daily wages is 125.55