CBSE Class 10-Mathematics: Chapter –14 Statistics Part 20

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Question 3:

Find the mean, mode and median for the following data:

The mean, mode and median for the following data

Classes

Frequency

Answer:

We have

The mean, mode and median

Classes

Mid-Value

Frequency

C.F

Let assumed mean , Here

We know that mean

Mean

Since maximum frequency

Modal class Here,

Now Mode

Mode

Now

Median class is Now median

Here

Median

Thus, Median