Study the following graph and answer the questions given below it :
Number of Children pursuing various Hobby classes in various States (Number in thousands)
What is the average number of children pursuing painting classes from all the States together ?
Total number of children pursuing painting classes
= 15 + 12.5 + 32.5 + 17.5 = 77.5 thousand
=> Required average = $$\frac{77500}{4}$$
= 19375
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