Frequency Polygon and Frequency curve

IMPORTANT

Frequency Polygon and Frequency curve: Overview

This topic covers concepts such as frequency polygon, and relation between histogram and frequency polygon.

Important Questions on Frequency Polygon and Frequency curve

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.
Question Image

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?

EASY
IMPORTANT

 In the following table the number of students passed in different subjects is given.
Question Image

What is the average maths students who passed in 2001-2005?

EASY
IMPORTANT

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)
Question Image

What is the average number of products manufactured by the company over all the years together ?

EASY
IMPORTANT

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.
Question Image

Maximum number of students received pocket money between ______

MEDIUM
IMPORTANT

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.

Question Image

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

EASY
IMPORTANT

Examine the given graph and answer these questions:

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

Question Image

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

EASY
IMPORTANT

Directions: Study the graph carefully to answer the questions that follow
Question Image

What is the ratio of the amount of profit earned by Company A to that by company B in the year 2009?

EASY
IMPORTANT

Directions Study the following graph and answer the questions given
Result of Annual Examination In a High School
Question Image


In which standard is the result of boys more than the average result of the girls?

EASY
IMPORTANT

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.
Question Image

All the trucks together, then what is the average distance to be travelled?

MEDIUM
IMPORTANT

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

Question Image

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

 

MEDIUM
IMPORTANT

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?

EASY
IMPORTANT

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

MEDIUM
IMPORTANT

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.

Question Image

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

EASY
IMPORTANT

The length of the rectangle of histogram and the frequency are proportional to each other.

EASY
IMPORTANT

Frequency polygon is drawn after drawing the histogram of the collected data.

EASY
IMPORTANT

To draw frequency polygon we need to draw histogram first.

EASY
IMPORTANT

Frequency polygons can also be drawn independently without drawing histograms.

HARD
IMPORTANT

Show the following data by a frequency polygon.

Electricity bill () 0-200 200-400 400-600 600-800 800-1000
Families 240 300 450 350 160

EASY
IMPORTANT

What is the width of each rectangle in the histogram?

MEDIUM
IMPORTANT

What is the area of the first rectangle (from left) of the histogram below?