CBSE Class 10-Mathematics: Chapter –14 Statistics Part 9

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Question 15:

Construct the cumulative frequency distribution of the following distribution:

Answer:

The required cumulative frequency distribution of the given distribution is given below:

Question 16:

If the values of mean and median are and , what will be the value of mode?

Answer:

We know that

Mode median mean

Mode

Question 17:

The marks obtained by students of class X of a certain school in a Mathematics paper consisting of marks are presented in table below. Find the mean of the marks obtained by the students.

Answer:

Thus, mean