Question

the frequency of distribution of marks scored by 100 students in an examination is given below find the mean marks by step deviation method









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Answer 1

Step-by-step explanation:

Mean Marks of Students is 44.8

Step-by-step explanation:

Given: Continuous Distribution table

To find: Mean Marks of Student

Formula used to find Means is given as follows

Mean,\overline{x}=\frac{\sum xf}{\sum f}Mean,

x

=

∑f

∑xf

Table is attached with required calculations.

Thus,

Mean,\overline{x}=\frac{4930}{110}=44.82Mean,

x

=

110

4930

=44.82

Therefore, Mean Marks of Students is 44.8

Hope it will helpful for you

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Borahae..

Answer 2

Answer:

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