Frequency Table and Histogram of Classified Data

IMPORTANT

Frequency Table and Histogram of Classified Data: Overview

This Topic covers sub-topics such as Characteristics of a Histogram, Histogram of Grouped Data, Understanding an Histogram and, Construction of Histograms

Important Questions on Frequency Table and Histogram of Classified Data

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Draw the histogram for the following data.

Class interval 0 - 10 10 - 20 20 - 30 30 - 40 40 - 50
Frequency 3 7 10 6 4

 

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The histogram shows the number of students using different modes of transport to commute from residence to school. From the bar graph, answer the following questions

The ratio of the number of pupils who travel by school bus and who travel by public bus is

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The histogram shows the number of students using different modes of transport to commute from residence to school. From the bar graph, answer the following questions

If 6 girls travel to school by bicycle, then how many boys travel by bicycle?

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The histogram shows the number of students using different modes of transport to commute from residence to school. From the bar graph, answer the following questions

The number of pupils who travel by bike is 3 times than that of the number of pupils who travel by

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The histogram shows the number of students using different modes of transport to commute from residence to school. From the bar graph, answer the following questions

How many more pupils travel by public bus than by car?

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The histogram shows the number of students using different modes of transport to commute from residence to school. From the bar graph, answer the following questions

What is the total number of pupils whole travel by school bus and bike?

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What is a pictorial representation of a grouped data in the form of rectangles touching each other?

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The histogram below shows the height distribution of NCC cadets of Royal Concorde international school, who participated in a camp.

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For a long jump activity, the captain needs to choose cadets whose height is more than 170 cm . How many cadets will the captain be able to shortlist for the activity?

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Prateek learned about histograms in his maths class today. He got an assignment to collect some data and draw a histogram using that data. He collected information about the distance travelled by all his subject teachers, every day, from their homes to school and drew the below histogram:

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If all the math teachers travel less than 15 km, then how many math teachers are there in the school?

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A school is planning to go for an inter-school football competition. For this, they took a survey to find the number of hours, the students of the school play football in a week. The survey has been demonstrated with the help of a histogram, as shown below. They want to select the students for the competition who play football for at least 8 hours in a week.

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Find the number of students who play football for at least 8 hours in a week.

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Siddharth's father is hospitalised and needs O+ve blood. Siddharth checked the data uploaded by the nearest Blood Bank on their website. Their data was represented in the form of Histograms as shown below:

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The doctor has suggested that the Donor must be of the age group between 22 years and 30 years. From the given data, find out how many Donors can donate blood to help Siddharth's father? 

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Draw Histogram of the given data.

Weight 40-45 45-50 50-55 55-60 60-65
No.of persons 4 12 13 6 5

 

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

In which age group is the number of literate females the highest?

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

In which age group are Iiterate females the least?

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Look at the histogram below and answer the questions that follow.

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Which class interval has the least number of students?

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Draw a histogram for the data shown in the table.

Number of students 0-3 3-6 6-9 9-12 12-15 15-18
Number of days 30 40 45 20 15 10

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Draw a histogram diagram for the data shown in the table.

Diameter in cm 1.3-1.4 1.4-1.5 1.5-1.6 1.6-1.7 1.7-1.8
Frequency 19 25 33 16 12

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Identify the scale of below histogram

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Identify the scale of below histogram

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Identify the scale used in the histogram given below.

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