# CBSE Class 10-Mathematics: Chapter –14 Statistics Part 17

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**Question 15:**

Draw a less than give for the following frequency distribution:

Marks | |||||

No. of students |

**Answer:**

We have

Marks | Frequency | C.F |

Upper class limits | |||||

Cumulative Frequency | |||||

Plot the points |

Joint these points by a free hand curve; we get the required give which is as follows:

**Question 16:**

The A.M of the following frequency distribution is . Find the value of P.

Classes | |||||

Frequency |

**Answer:**

We have

Class Interval | Mid-value | Frequency | |

Since Mean

Thus,