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Using the Information Given in the Adjoining Histogram, Calculate the Mean. - Mathematics

Sum

Using the information given in the adjoining  histogram, calculate the mean. 

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Solution

 C.I  Frequency Mid value x  Fx 
 15-25  10 20 200
25-35 20 30 600
35-45 25 40 1000
45-55 15 50 750
55-65 5 60 300
Total  75   2850

`barx=(∑ f_x)/(∑ f)=2850/75=38` 

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APPEARS IN

Selina Concise Maths Class 10 ICSE
Chapter 24 Measure of Central Tendency(Mean, Median, Quartiles and Mode)
Exercise 24 (B) | Q 7 | Page 362
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