NCERT Solutions for Complex Numbers and Quadratic Equations Exercise 5.3 Class 11 Maths

September 13, 202239 Insightful Publications

**NCERT Solutions for Class 11 Maths Chapter 15 Ex 15.2: **NCERT Solutions Class 11 Maths Chapter 15 Statistics has solutions for all exercise 15.2 questions. Subject matter experts in Embibe prepare NCERT solutions for Statistics Class 11 Mathematics. This article gives detailed solutions for Exercise 15.2 of Class 11 Maths.

Exercise 15.2 of Chapter 15 deals about Mean, Mean Deviation, Variance and Standard Deviation. Moreover, Embibe provides 500+ practice questions from 30+ books so that students can strengthen their basics. Besides that, they can also refer to important books like NCERT exemplars, Golden Mathematics etc., available in Embibe library.

Statistics is an important chapter as it forms the basis for higher studies. Topics on Mean Deviation, Variance Deviation are discussed on the exercise. Referring to the solutions for Exercise 15.2 can help students to understand the step-wise procedure of solving numericals related to the topic.

Furthermore, students can refer to Embibe’s explainers and 3D videos to enhance their comprehension of the concepts. In addition, at the end of every topic students can find at least 100 practice questions to improve their problem solving skills. The table below highlights important topics covered in Chapter 15 of Class 11 Maths.

Exercise | Topics |

15.1 | Introduction |

15.2 | Measures of Dispersion |

15.3 | Range |

15.4 | Mean Deviation |

15.4.1 | Mean Deviation for Ungrouped Data |

15.4.2 | Mean Deviation for Grouped Data |

15.4.3 | Limitations of Mean Deviation |

15.5 | Variance and Standard Deviation |

15.5.1 | Standard Deviation |

15.5.2 | Standard Deviation of a Discrete Frequency Distribution |

15.5.3 | Standard Deviation of a Continuous Frequency Distribution |

15.5.4 | Shortcut method to find Variance and Standard Deviation |

15.6 | Analysis of Frequency Distributions |

15.6.1 | Comparison of two Frequency Distributions with same Mean |

While practising the questions will help students gain a lot of confidence in the examination, referring to important points ease the revision process. Find a list of important points for exercise 5.2 below.

- Mean deviation is the arithmetic mean of the absolute values of deviations about some point.
- Standard deviation is the positive square root of variance.
- Variance is the arithmetic mean of the squares of deviation about mean.
- The distribution having a greater coefficient of variation has more variability around the central value, than the distribution having a smaller value of coefficient of variation.

In order to ace the Class 11 Maths exam, students should be thorough with all the chapters. Below you can find the NCERT Solutions for all the chapters of Class 11 Maths.

**1st Chapter: Sets****2nd Chapter: Relations and Functions****3rd Chapter: Trigonometric Functions****4th Chapter: Principle of Mathematical Induction****5th Chapter: Complex Numbers and Quadratic Equations****6th Chapter: Linear Inequalities****7th Chapter: Permutations and Combinations****8th Chapter: Binomial Theorem****9th Chapter: Sequences and Series****10th Chapter: Straight Lines****11th Chapter: Conic Sections****12th Chapter: Introduction to Three Dimensional Geometry****13th Chapter: Limits and Derivatives****14th Chapter: Mathematical Reasoning****15th Chapter: Statistics****16th Chapter: Probability**

**Ans**: Students can find NCERT solutions for class 11 Maths Chapter 15, exercise 15.2 from this page.

**Ans:** Embibe provides 500+ practice questions for Class 11 Maths Statistics Chapter.

**Ans:** Yes, NCERT solutions for class 11 Maths is very useful for exams as they are prepared by experts of Embibe and will help you score well.

**Ans:** Questions in Class 11 Maths Chapter 15 Ex 15.2 are asked from the Mean Deviation and Variance and Standard Deviation topic.

**Ans:** Embibe library has 6 important Maths book that Class 11 students can refer to.