R d sharma solutions mathematics class 8 Solutions for Chapter 24 classification and tabulation of data graphical representation of data as histograms

Given below is the frequency distribution of the heights of 50 students of a class:

Draw a histogram representing the above data.

Draw a histogram of the following data:

Number of workshops organized by a school in different areas during the last five years are as follows:

Draw a histogram representing the above data:

In a hypothetical sample of 20 people the amounts of money with them were found to be as follows:

114, 108, 100, 98, 101, 109, 117, 119, 126, 131, 136, 143, 156, 168, 182, 195, 207, 219, 235, 118.

Draw the histogram of the frequency distribution (taking one of the class intervals as 50-100).

Construct a histogram for the following data:

Draw a histogram for the daily earnings of 30 drug stores in the following table:

Draw a histogram to represent the following data:

The following histogram shows the number of literate females in the age group of 10 to 40 years in a town :

(i) Write the age group in which the number of literate female is the highest.

(ii) What is the class width?

(iii) What is the lowestfrequency?

(iv) What are the class marks of the classes?

(v)In which age group literate females are the least?

The following histogram shows the monthly wages (in Rs) of workers in a factory:

(i) In which wage-group the largest numbers of worders are being kept? What is their number?

(ii) What wages are the least number of workers getting? What is the number of such workers?

(iii) What is the total number of workers?

(iv) What is the factorysize?

Below is the histogram depicting marks obtained by 43 students of a class:

(i) Write the number of students getting the highest marks.

(ii) What is the class size?

The following histogram shows the frequency distribution of the ages of 22 teachers in a school:

(i) What is the number of eldest and youngest teachers in the school?

(ii) Which age group teachers are more in the school and which least?

(iii) What is the size of the classes?

(iv)What are the class marks of the classes?

The weekly wages (in Rs.) of 30 workers in a factory are given:

830, 835, 890, 810, 835, 836, 869, 845, 898, 890, 820, 860, 832, 833, 855, 845, 804, 808, 812, 840, 885, 835, 835, 836, 878, 840, 868, 890, 806, 840

Mark a frequency table with intervals as 800-810, 810-820 and so on, using tally marks.

Also, draw a histogram and answer the following questions:

(i) Which group has the maximum number of workers?

(ii) How many workers earn Rs. 850 and more? How many workers earn less then Rs, 850?