The following is the distribution of weights (in kg) of 40 persons.

Construct a cumulative frequency distribution (of the less than type) table for the data above.

The weights (in kg) of 50 wrestlers are recorded in the following table.

Find the mean weight of the wrestlers.

The mileage (km per liter) of 50 cars of the same model was tested by a manufacturer and details are tabulated as given below

Find the mean mileage.

The manufacturer claimed that the mileage of the model was 16Km L^-1

Do you agree with this claim?

The following table shows the cumulative frequency distribution of marks of 800 students in an examination.

Construct a frequency distribution table for the data above.

From the frequency distribution table from the following data