# CBSE Class 10-Mathematics: Chapter – 14 Statistics Part 7 (For CBSE, ICSE, IAS, NET, NRA 2022)

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**Question 7**:

If the values of mean and mode are respectively and , then median

(a)

(b)

(c)

(d)

**Answer**:

Median Mode

**Question 8**:

If the mean of the following data is . find the value of P.

**Answer**:

We have

Now mean

**Question 9**:

Find the mean of the following data.

Classes | |||||

Frequency |

**Answer**:

We have

Classes | Mid-value | Frequency | |

Now mean

Hence, mean

**Question 10**:

The following data gives the information observed life times (in hours) of electrical components. Determine the modal life times of the components.

Life time (in hours) | ||||||

Frequency |

**Answer**:

Since the maximum frequency and it corresponds to the class

Here,

We know that mode Mo is given by

Thus, modal life hours