Question

the following frequency distribution . observation 5,15,25,35,. frequencies 20,16,p, 2​

Answer 1

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Answer 2

We know that , if m is the midpoint fo a class and h is the class size,

then lower limit of class interval =m−

2

h

Upper limit of class interval =m+

2

h

We have class sixe, 15−5=10

so the class interval formed from the midpoint 5 is

=(5−

2

10

)−(5+

2

10

)i.e0−10

Containing in the same manner, the continuous classes formed are;