INTERPRETING BAR GRAPHS WORKSHEET

Problem 1 :

The bar graph shows the number of different items sold in an electrical goods store in a given month.

(a)  How many DVD players were sold for the month ?

(b) How many more computers were sold than television sets ?

(c)  What percentage of the items sold were cooling fans ?

Solution

Problem 2 :

(a)  Estimate the median house price in 2008 in

(i) London

(ii) Liver pool

(b)  How much bigger is the median house price in Edinburgh than Glasgow ?

(c)  What percentage is the median Birmingham price of the median Liverpool price in the year 2008?

Solution

Problem 3 :

The graph along side displays the result of a national phone in of children ages six to sixteen as to what they do at home between 3 pm to 6 pm

(a)  Use the graph to determine the percentage of children who.

(i) Watch TV, videos, play with computers or listen to music.

(ii)  Spend time with friends, siblings or pets.

(b) If 240 children were surveyed.

(i) How many do school work ?

(ii)  How many spend more time on the phone rather than do chores ?

Solution

Problem 4 :

The bar graphs shows the crude oil reserves for the top five oil producing countries in the world.

(a) How many billion barrels of crude oil do these countries have in total ?

(b) How many more barrels can Saudi Arabia produce than Iraq?

(c) What percentage of the crude oil is held by Iran ?

Solution