2. Consider the following distribution of daily wages of 50 workers of a factory. Daily wages (in Rs.) 500-520 520-540 540-560 560-580 580-600 Number of workers 12 14 8 6 10

Find the mean of the following distribution.The daily wages of 50 employees in an organization are given below:Daily wages (in $)100 - 150150 - 200200 - 250250 - 300Number of Workers1213178Find the mean daily wages.

Define the normal distribution. The daily wages of 1000 workers are normally distributed with mean of Rs.140 and with S.D.Rs.10 .Estimate the no. of workers whose daily wages will be (i) more than Rs.160 (ii) less than Rs. 126 and(iii) betweenRs.140 and Rs.144

A company employs skilled workers, unskilled workers, and clerks in the proportion of 8 : 5: 1, and the wage of a skilled worker, an unskilled worker, and a clerk are in the ratio of 5: 2 : 3. When 20 unskilled workers are employed, the total daily wages all amount to Rs. 3180. Find the daily wages paid to each category of employees.

The median and mode of the following distribution of 230 workers are known to be 33.5 and 34 respectively.Find X, Y and Z. Wages Number of workers 0-10 4 10-20 16 20-30 X 30-40 Y 40-50 Z 50-60 6 60-70 4

Find the median income of the following frequency distribution:Weekly Income(Rs.)0 –10001000 –20002000 –30003000 –40004000 –50005000 –6000Frequency 250 190 100 40 15 5