Jitender Gupta and Divya Malik Solutions for Exercise 4: Topic Exercise

Find the mode of the following frequency distribution by drawing a histogram.

A frequency distribution of length of sticks in a bundle is given below:

Prepare a classified frequency distribution.

Display it by an ogive and use it to find the median length of the sticks.

Use graph for this question:

A survey regarding height(in cm) of $60$ boys belonging to class $10$ of a school was conducted. The following data was recorded:

Taking $2 \mathrm{cm}=$ height of $10 \mathrm{cm}$ along one axis and $2 \mathrm{cm}=10$ boys along the other axis draw an ogive of the above distribution. Use the graph to estimate the median.

Use graph for this question:

A survey regarding height(in cm) of $60$ boys belonging to class $10$ of a school was conducted. The following data was recorded:

Taking $2 \mathrm{cm}=$ height of $10 \mathrm{cm}$ along one axis and $2 \mathrm{cm}=10$ boys along the other axis draw an ogive of the above distribution. Use the graph to estimate the lower quartile.

The marks of $200$ students in a test is given below:

Draw the ogive and find the median.

The marks of $200$ students in a test is given below:

Draw the ogive and find the number of students who scored more than $35\%$ marks.

The monthly income of a group of $320$ employees in a company is given below.

Draw an ogive of the given distribution on a graph sheet taking$2 \mathrm{cm} = ₹1000$ on one axis and $2 \mathrm{cm} = 50$ employees on the other axis. From the graph determine if the salary of a senior employee is above $₹11500$, then find the number of senior employees in the company

The monthly income of a group of $320$ employees in a company is given below.

Draw an ogive of the given distribution on a graph sheet taking$2 \mathrm{cm} = ₹1000$ on one axis and $2 \mathrm{cm} = 50$ employees on the other axis. From the graph determine the upper quartile.