MEDIUM
9th CBSE
IMPORTANT
Earn 100

The following table gives the lifetimes of 400 neon lamps:

 Lifetime  (in hr) 300-400400-500500-600600-700700-800800-900900-1000 Number of  lamps 14566086746248

Represent the given information with the help of a histogram.

Important Questions on Bar Graph, Histogram and Frequency Polygon

EASY
9th CBSE
IMPORTANT

The following table gives the lifetimes of 400 neon lamps:

 Lifetime  (in hr) 300-400400-500500-600600-700700-800800-900900-1000 Number of  lamps 14566086746248

How many lamps have a lifetime of more than 700 hours?

MEDIUM
9th CBSE
IMPORTANT

Draw a histogram for the frequency distribution of the following data:

Class interval 8-13 13-18 18-23 23-28 28-33 33-38 38-43
Frequency 320 780 160 540 260 100 80

 

MEDIUM
9th CBSE
IMPORTANT

Construct a histogram for the following frequency distribution:

 Class interval 5-1213-2021-2829-3637-4445-52 Frequency 615241849

MEDIUM
9th CBSE
IMPORTANT

The following table shows the number of illiterate persons in the age group (10-58 years) in a town:

Age group (in years) 10-16 17-23 24-30 31-37 38-44 45-51 52-58
Number of illiterate persons 175 325 100 150 250 400 525

Draw a histogram to represent the above data.

 

EASY
9th CBSE
IMPORTANT

Draw a histogram to represent the following data:

 Class interval 10-1414-2020-3232-5252-80 Frequency 5692521

 

MEDIUM
9th CBSE
IMPORTANT

100 surnames were randomly picked up from a local telephone directory and frequency distribution of the number of letters in the English alphabet in the surnames was found as follows:

 Number of letters 1-44-66-88-1212-20 Number of surnames 63044164

Draw a histogram to depict the given information.

EASY
9th CBSE
IMPORTANT

100 surnames were randomly picked up from a local telephone directory and frequency distribution of the number of letters in the English alphabet in the surnames was found as follows:

 Number of letters 1-44-66-88-1212-20 Number of surnames 63044164

Write the class interval in which the maximum number of surnames lie.

MEDIUM
9th CBSE
IMPORTANT

Draw a histogram to represent the following information:

 Class interval 5-1010-1515-2525-4545-75 Frequency 61210818