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Making Tables

When we make ...

Question

When we make the table from this graph, What will be the average number of students of all the 9 classes?

A

56.67

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B

57.75

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C

53.33

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D

49.66

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Solution

The correct option is B
57.75

The table of the given graph is :

Average = $\frac{S u m o f s t u d e n t s}{8}$ = $\frac{45 + 49 + 60 + 75 + 70 + 49 + 60 + 54}{8}$

= $\frac{462}{8}$

= 57.75

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