Question

calculate the average daily income in rupees of the following data about men working in a company daily income less than hundred, list in 200 less than 300 less than 400 less than 500 number of men 12, 28, 34, 41, 50

Answer 1

Mean=total fixi/total fi
Mean=600+2800+5100+8200+12500/12+28+34+41+50
Mean=27000/155
Therefore mean is 174.198 or175

Answer 2

Answer:

For calculating the average daily income in rupees of the following above given data, let us first calculate certain information from the calculated data from the tabular figure attached below:

       

∑f i = 50  

∑fiXi = -15

Let us consider the assumed mean, a = 250  

Thus, by using the step deviation method,

The average daily income of the men (in Rs.)  

= [a + (∑fiXi /∑fi) * h]  

= [ 250 + (-15 /50) * 100]

= 250 – 30

= Rs. 220