Question

in a group frequency distribution the class intervals are 1-20 ,21 -40 41-60 ..find the class width interval​

Answer 1

Answer:

Frequency Distribution

Step-by-step explanation:

In statistics, the frequency distribution is defined as a data set or the group which is organized such that it shows any frequency that will occur due to any possible outcome of a repeating events more than once, will be observed several times.

There are different types of frequency distribution. They are:

1) Grouped

2) Ungrouped

3) Cumulative

4) Relative

5) Relative cumulative

Advantages of frequency distribution:

1) They will present any given raw data into organized format.

2) The occurring score will be identified easily, occurrence of lower and upper limits, the total number of given scores in observation.

Given that:

Distribution of class intervals

(1-20) , (21-40), (41-60)

To find:

The class width of interval =?

Solution:

Formula to find class interval:

High –(low value +1)

Here, high = 60

Low value = 1

Therefore, by putting these values, we get,

20- (1+1)

20-2 = 18

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