The following distribution gives the number of accidents met by 160 workers in a factory during a month. No. of accidents `(x)` : 0 1 2 3 4 No. of workers `(f)` : 70 52 34 3 1 Find the average number of accidents per worker.

The following table gives the number of children of 150 families in a village No. of children (x) : 0 1 2 3 4 5 No. of families (f) : 10 21 55 42 15 7 Find the average number of children per family.

In the first proof reading of a book containing 300 pages the following distribution of misprints was obtained: No. of misprints per page (x) : 0 1 2 3 4 5 No. of pages (f) : 154 95 36 9 5 1 Find the average number of misprints per page.

The following distribution gives the daily income of 50 workers of a factory: Daily income (in Rs): 100-120 120-140 140-160 160-180 180-200 Number of workers: 12 14 8 6 10 Convert the above distribution to a less than type cumulative frequency distribution and draw its ogive.

The following table gives the daily income of 50 workers of a factory: Daily income (in Rs): 100-120 120-140 140-160 160-180 180-200 Number of workers: 12 14 8 6 10 Find the mean, mode and median of the above data.

The following table shows the weights (in kg) of 15 workers in a factory: Weight (in kg): 60 63 66 72 75 Numbers of workers: 4 5 3 1 2 Calculate the mean weight.

Consider the following distribution of daily wages of 50 workers of a factory. Daily wages (in Rs).: 100-120 120-140 140-160 160-180 180-200 Number of workers: 12 14 8 6 10 F i nd the mean daily wages of the workers of the factory by using an appropriate method.

Consider the following information regarding the number of men and women workers in three factories. I, II and III. Men workers Women workers I 30 25 II 25 31 III 27 26 Represent the above information in the form of 3xx2 matrix. What does the entry in the third row and second column represent?

If the mean of the following distribution is 6, find the value of p. x: 2 4 6 10 p+5 f: 3 2 3 1 2

Consider the following information regarding the number of men and women workers in three factories I, II and III. Men workers Women workersI 30 25II 25 31III 27 26Represent the above information in the form of a 3 xx2 matrix. What does th

Find the missing frequencies in the following frequency distribution if it is known that the mean of the distribution is 1.46. No of accident (x) 0 1 2 3 4 5 Total Frequency (f): 46 ? ? 25 10 5 200