**Table Of Contents**

Statistical Techniques is Unit 3 of Math 4 Btech AKTU. This lesson focuses on statistical approaches and techniques utilized in engineering and science. Probability distributions, hypothesis testing, regression analysis, and experimental design are all discussed. Students will also learn how to evaluate data and develop conclusions using statistical tools.

Dudes 🤔.. You want more useful details regarding this subject. Please keep in mind this as well.Important Questions ForMath 4 (Mathematics 4):*Unit-01 *Unit-02 *Unit-03 *Unit-04 *Unit-05 *Short-Q/Ans *Question-Paper with solution 21-22

**Q1. The following table represents the height of a batch of 100 students. Calculate skewness and kurtosis:**

Height (in cm) | 59 | 61 | 63 | 65 | 67 | 69 | 71 | 73 | 75 |

No of Students | 0 | 2 | 6 | 20 | 40 | 20 | 8 | 2 | 2 |

**Ans.**

**Q2. Fit a second degree parabola to the following data **

x | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 3.5 | 4.0 |

y | 1.1 | 1.3 | 1.6 | 2.0 | 2.7 | 3.4 | 41 |

**Ans. We shift the origin to (2.5, 0) and take 0.5 as the new unit. This changes the variable x to X, by the relation X = 2x – 5. **

**Q3. Calculate the coefficient of correlation between the following ages of husband (r) and wife (y) by taking 30 and 28 as assumed mean in case of * and y respectively: **

x | 24 | 27 | 28 | 28 | 29 | 30 | 32 | 33 | 35 | 35 | 40 |

Y | 18 | 20 | 22 | 25 | 22 | 28 | 28 | 30 | 27 | 30 | 32 |

**Ans.**

**Q4. Find the coefficient of correlation (r) and obtain the equation to the lines of regression for the following data :**

x | 6 | 2 | 10 | 4 | 8 |

y | 9 | 11 | 5 | 8 | 7 |

**Ans.**

**Important Question with solutions | AKTU Quantums | Syllabus | Short Questions**

**Math 4 Btech** Quantum PDF, Syllabus, Important Questions

Label | Link |
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Subject Syllabus | Syllabus |

Short Questions | Short-question |

Important Unit-1 | Unit-1 |

Important Unit-2 | Unit-2 |

Important Unit-3 | Unit-3 |

Important Unit-4 | Unit-4 |

Important Unit-5 | Unit-5 |

Question paper – 2021-22 | 2021-22 |

**Math 4** Quantum PDF | AKTU Quantum PDF:

Quantum Series | Links |

Quantum -2022-23 | 2022-23 |

## AKTU Important Links | Btech Syllabus

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Btech AKTU Circulars | Links |

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