Cumulative Frequency

IMPORTANT

Cumulative Frequency: Overview

This topic covers concepts, such as, Class Intervals for Grouped Data, Class Marks for Grouped Data, Relation between Histogram and Frequency Polygon & Drawing a Frequency Polygon etc.

Important Questions on Cumulative Frequency

EASY
IMPORTANT

Directions— Study the following graph carefully to answer the questions that follow— The following line graph gives the distance (in km) travelled by five different trucks in a day.
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If Truck C covered the given distance at the average speed of 55 km/hr, what was the time taken by it to cover this distance?

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 In the following table the number of students passed in different subjects is given.
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What is the average maths students who passed in 2001-2005?

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Study the following graph carefully to answer the questions—The following Bar graph gives the number of products manufactured and sold by a company over the years. (in thousands)
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What is the average number of products manufactured by the company over all the years together ?

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DIRECTIONS : The adjacent histogram shows the average pocket money received by 60 students for a span of one month. Study the diagram and answer the question.
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Maximum number of students received pocket money between ______

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Directions: The pie-chart drawn below shows the spending's of a country on various sports during a particular year. Study the pie-chart carefully and answer the questions given below it.

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If the total amount spent on sports during the year was 15000000, the amount spent on cricket and hockey together was

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IMPORTANT

Calculate the cumulative frequency for the class 20-25 and the given table is:

Class interval Frequencies
1-5 4
5-10 2
10-15 8
15-20 12
20-25 6
25-30 6

 

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Examine the given graph and answer these questions:

Production of agricultural machinery by a company. (in thousands)

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The average production by the company all over the years was:

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Directions: Study the graph carefully to answer the questions that follow
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What is the ratio of the amount of profit earned by Company A to that by company B in the year 2009?

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Directions Study the following graph and answer the questions given
Result of Annual Examination In a High School
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In which standard is the result of boys more than the average result of the girls?

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Directions— Study the following graph carefully to answer the questions that follow— The following line graph gives distance (in km) travelled by five different trucks in a day.
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All the trucks together, then what is the average distance to be travelled?

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Study the following pie chart and answer the question based on it-

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The degree of angle of the pie chart represents expenditure on paying 'Royalty' is

 

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Study the following table and answer the questions based on it:
(In lakhs of ` )

XYX CO.PVT.LTD

Years

Total Sales

Gross Profit

Net Profit

1990

351.6

155.5

54.2

1991

407.9

134.3

42.6

1992

380.1

149.9

38.9

1993

439.7

160.5

50.3

1994

485.9

203.3

65.8

In which year the difference between the total sales and the gross profit is the least?

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Study the following graph depicting budget of family.
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If total monthly income of a family is 5,800 how much amount is spent on conveyance per month?

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The pie chart given below shows the break-up of the cost of construction of a house. Assuming that the total cost of construction is 60000, answer the questions given below.

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The amount spent on cement, steel and supervision is what per cent of the total cost of construction.

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Types of cumulative frequencies are ___________

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The difference between upper limit and lower limit of a class is called:

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No. of Accidents 0 1 2 3 4 5 6 7
Frequency 36 27 33 29 24 27 18 9

In how many cases 4 or more accidents occur ?

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Frequency distribution of the scores of a class of 25 students in a test are given below.

 Scores  Frequency 45-49150-54155-59260-64165-69170-74275-79380-84385-89390-94595-993

Find the median class.

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The class mark of 20-30 is

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The measure of central tendency which is given by the x-coordinate of the point of intersection of the 'more than' ogive and 'less than' ogive is