The following cumulative frequency distribution table shows the daily electricity consumption (in kW) of 40 factories in an industrial state: Consumption (in kW) No. of Factories Below 240 Below 270 Below 300 Below 330 Below 360 Below 390 Below 420 1 4 8 24 33 38 40 Represent this as a frequency distribution table

Given below is a cumulative frequency distribution showing the mars secured by 50 students of a class From the frequency distribution table for the data.

Given below are the cumulative frequencies showing the weights of 685 students of a school. Prepare a frequency distribution table. Weight (in kg), No. of students Below 25 Below 30 Below 35 Below 40 Below 45 Below 50 Below 55 Below 60 Below 65 Below 70, 0 24 78 183 294 408 543 621 674 685

Given below is distribution of daily earnings of 60 workers in a factory Find 45^(th) percentile.

Find the mean of the frequency distribution: (ii) The weight of 40 students of class IX are given below:

Construct the frequency distribution table from the following cumulative frequency table: {:("Ages" ,"No of Students"),("Below" 4,0),("Below" 7,85),("Below" 10,140),("Below" 13,243),("Below" 16,300):} State the number of students in the age group 10-13

Construct the frequency distribution table from the following cumulative frequency table: {:("Ages" ,"No of students"),("Below" 4,0),("Below" 7,85),("Below" 10,140),("Below" 13,243),("Below" 16,300):} State the age group which has the least number of students

A cumulative frequency distribution is given below. Convert this into a frequency distribution table. Marks Below 45 Below 60 Below 75 Below 90 Below 105 Below 120 No. of Students 0 8 23 48 85 116

A cumulative frequency distribution is given below. Convert this into a frequency distribution table. Marks Below 45 Below 60 Below 75 Below 90 Below 105 Below 120 No. of Students 0 8 23 48 85 116

A life insurance agent found the following data for distribution of ages of 100 policy holders. Calculate the median age, if policies are only given to persons having age 18 years onwards but less than 60 years. Ag e (i n years) Number of policy holders Below 20 2 Below 25 6 Below 30 24 Below 35 45 Below 40 78 Below 45 89 Below 50 92 Below 55 98 Below 60 100

The table given below shows a frequency distribution table, find (a) Upper limit of third class (b) Lower limit of fifth class (c) Class size (d) Class mark of third class