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

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**Question 15:**

Construct the cumulative frequency distribution of the following distribution:

Class Interval | ||||||

Frequency |

**Answer:**

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

Class Interval | Frequency (f) | Cumulative frequency |

Total |

**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.

Marks obtained | |||||||||||||

Students |

**Answer:**

Marks obtained | No. of students | |

Thus, mean