Marks 0-20,20-40,40-60,60-80,80-100.number of student 9,a,40,b,15=100.thevalue of b is twice the value of a.find their values and draw a histogram
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Step-by-step explanation:
According to given condition,
b= 2a........... (1)
9+a+40+b+15 = 100
a+b+64 = 100
a+b = 100-64
a+b = 36
a+2a =36. (from 1)
3a = 36
a = 12
b = 2a = 2(12) = 24
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