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Data Handling — MATHS STD 7 — Question

Gujarat BoardEnglish MediumSTD 7MATHSData Handling5 Marks
Question
Study the double bar graphs given below and answer the following questions:

$a.$ Which sport is liked the most by Class $VIII$ students?
$b.$ How many students of Class $VII$ like Hockey and Tennis in all?
$c.$ How many students are there in Class $VII$?
$d.$ For which sport is the number of students of Class $VII$ less than that of Class $VIII?$
$e.$ For how many sports students of Class $VIII$ are less than Class $VII?$
$f.$ Find the ratio of students who like Badminton in Class $VII$ to students who like Tennis in Class $VIII.$
✓

Answer

$a.$ By observing the graph, we can say that the height of the bar corresponding to cricket for class $VIII$ student is largest. Hence, cricket is liked the most by class $VIII$ students.
$b.$ Height of bar corresponding to hockey and tennis for class $VII$ are $ 7$ and $10$ respectively. So, total students of class $VII$ who like hockey and tennis $= 7 + 10 = 17$
$c.$ Total number of students in class $VII =$ Sum of heights of all the bars for class $VII$
$= 7 + 16 + 18 + 10 + 14 = 65$
$d.$ The sport for which number of students of class $VII$ is less than that of class $VIII$ will be that for which height of bar is less.
By observing the graph in case of cricket height of bar is less for class $VII$ as compared to class $VIII.$
$e.$ We can clearly see from the double bar graph for Hockey, Football, Tennis and Badminton, the number of students are less for class $VIII$ as compared to class $VII.$
$f.$ Number of students who like badminton in class $VII = 14$ and number of students who like tennis in class $VIII = 7$
$\therefore$ Required ratio $= 14 : 7 = 2 : 1$

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