Question

the class interval 10-15,15-20,then number 15is included in÷​

Answer 1

Answer:

15 is included in class interval 15-20

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Answer 2

The class interval 10 - 15 , 15 - 20 then number 15 is included in 15 - 20

Given : The class interval 10 - 15 , 15 - 20

To find : The number 15 is included in

Solution :

When the number of sample values are large in number and are in wide range, then the whole data is divided in a number of several groups according to the size of the sample. Each of these groups, made as above, is known as class interval

Here the given class intervals are 10 - 15 , 15 - 20

The given distribution is continuous representation of the given data

First class interval = 10 - 15

Second class interval = 15 - 20

We see that for the given frequency distribution 15 in present in both class intervals 10 - 15 , 15 - 20

Lower class boundary of second class = 15

So 15 is included in 15 - 20

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