The profits & loss of a particular firm during the years 1989-1993 are given in the following table:

Represent the above statistical data by a bar diagram.

The number of students in university during 1995-98 is given below: Represent the information cotained in the above table by component bar chart.

An insurance company selected 2000 drivers at random (i.e., without any preference of one driver over another) in a particular city to find a relationship between age and accidents. The data obtained is given in the following table: Find the probabilities of the following events for a driver chosen at random from the city: (i) The driver being in the age group 18-29 years and having exactly 3 accidents in one year. (ii) The driver being in the age group of 30-50 years and having one or more accidents in a year. (iii) Having no accidents in the year.

The following table shows the ages of the patients admitted in a hospital on a particular day : Find the mode and the mean of the data given below. Compare and interpret the two measures of central tendency.

Donations (in rupees) are given for a fare by the 100 students of a school. In the following table rate of donation and the number of students are given. In the above data, the rate of donation of 24 students is unknown , but it is known to us that the average rate of donation is Rs. 1.27 . Find teh unknown frequency.

Represent the following data by a pie chart on proposed outlay during a Five-year plan of a Government:

Three coins are tossed 30 times simultaneously. Each time the number of heads occurring was noted down as follows: Prepare a frequency distribution table for the data given above.

A company manufactures car batteries of particular type. The life (in years) of 40 batteries was recorded as follows: Construct a grouped frequency distribution table with exclusive classes for this data, using class intervals of size 0.5 starting from the interval 2-2.5.