Question : The given bar graph represents the number of boys and girls in five different schools. Read the graph and answer the question that follows.
What is the average number of students (girls and boys) in schools A, B, C, D and E?
Option 1: 1250
Option 2: 625
Option 3: 660
Option 4: 596
Correct Answer: 1250
Solution :
As per the given graph,
The total number of students (girls and boys) in schools A, B, C, D and E = 600 + 500 + 450 + 550 + 750 + 650 +700 + 600 + 800 + 650 = 6250
The number of schools = 5
Average = $\frac{\text{Sum of all the observations}}{{\text{Total number of observations}}}$
The average number of students (girls and boys) in schools A, B, C, D and E = $\frac{6250}{5}$ = 1250
Hence, the correct answer is 1250.
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