Dr. Sanjeev Verma and R.K. Tyagi Solutions for Chapter: Data Handling, Exercise 1: ASSIGNMENT 13.1

Following is the distribution of marks of $50$ students:

What is the upper limit of $4\text{th}$ class?

Following is the distribution of marks of $50$ students:

What is the class mark of $8\text{th}$ class?

Following is the distribution of marks of $50$ students:

What is the class mark of fifth class?

Following is the distribution of marks of $50$ students:

What is the class size or the class width of the above distribution?

Prepare a frequency table of the following data for the heights of $15$ students:

$85\text{cm}, 61\text{cm}, 92\text{cm}, 80\text{cm}, 82\text{cm}, 80\text{cm}, 67\text{cm}, 85\text{cm}, 83\text{cm}, 81\text{cm}, 92\text{cm}, 80\text{cm}, 61\text{cm}, 72\text{cm}, 63\text{cm}$

The following marks are obtained by $32$ students in a Mathematics Test.

$70, 50, 70, 56, 80, 49, 63, 73, 50, 56, 60, 60, 63, 64, 70, 76,$

$66, 55, 75, 65, 70, 71, 80, 81, 56, 74, 68, 66, 50, 62, 70, 52$

Prepare a frequency distribution table.

Following are the marks obtained by $25$ students of class $VII$ in an English Test.

$90, 75, 70, 72, 71, 65, 63, 68, 61, 62, 62, 56, 75,$

$70, 56, 56, 53, 53, 53, 41, 31, 32, 31, 31, 28$

Prepare a frequency distribution table.

Monthly savings (in rupees) of $30$ students of class $VII$ are as follows:

$53, 80, 43, 90, 64, 20, 24, 30, 50, 56, 60, 64, 53, 40, 21,$

$12, 8, 15, 5, 14, 35, 45, 83, 95, 74, 63, 55, 37, 80, 20$

Construct a frequency table with class-intervals $0-10, 10-20$ and so on.