Unit 5 of Math 4 in Btech AKTU is Statistical Techniques III. This section covers probability distributions, parameter estimation, hypothesis testing, and regression analysis. Students will learn about various statistical methodologies and how to use them in real-world situations. The program also includes practical workshops to provide students hands-on experience 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. In a city A, 20 of a random sample of 900 school boys had a certain slight physical defect. In another city B, 18.5% of a random sample of 1600 school boys had the same defect. Is the difference between the proportions significant ? **

**Ans.**

**Q2. Explain the test of significance of difference of means. **

**Ans.**

**Q3. The scores of 10 candidates obtained in tests before and after attending some coaching classes are given below :**

Before | 54 | 76 | 92 | 65 | 75 | 78 | 66 | 82 | 80 | 78 |

After | 60 | 80 | 86 | 72 | 80 | 72 | 66 | 88 | 82 | 73 |

**Is the coaching for the test effective? Test at 5% level of significance. **

**Ans. **

**Q4. By using find out whether there is any association between income level and type of schooling: **

Social Status Health | Poor | Rich | Total |

Below Normal | 130 | 20 | 150 |

Normal | 102 | 108 | 210 |

Above Normal | 24 | 96 | 120 |

Total | 256 | 224 | 480 |

**Ans.**

**Let us suppose the null hypothesis is that there is no association between income level and type of schooling **

**The expected frequencies are **

**Q5. It is desired to compare three hospitals with regards to the number of deaths per month. A sample of death records were selected from the records of each hospital and the number of deaths was as given below. From these data, suggest a difference in the number of the deaths per months among three hospitals : **

A | B | C |

3 | 6 | 7 |

4 | 3 | 3 |

3 | 3 | 4 |

5 | 4 | 4 |

5 | 4 | 6 |

0 | 4 | 5 |

**Ans.**

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

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

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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 |

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