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 For Math 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.
![The following table represents the height of a batch of 100 students. Calculate skewness and kurtosis](https://bachelorexam.com/wp-content/uploads/2023/04/image-779.png)
![The following table represents the height of a batch of 100 students. Calculate skewness and kurtosis](https://bachelorexam.com/wp-content/uploads/2023/04/image-779.png)
![The following table represents the height of a batch of 100 students. Calculate skewness and kurtosis](https://bachelorexam.com/wp-content/uploads/2023/04/image-778.png)
![The following table represents the height of a batch of 100 students. Calculate skewness and kurtosis](https://bachelorexam.com/wp-content/uploads/2023/04/image-778.png)
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.
![Fit a second degree parabola to the following data](https://bachelorexam.com/wp-content/uploads/2023/04/image-780.png)
![Fit a second degree parabola to the following data](https://bachelorexam.com/wp-content/uploads/2023/04/image-780.png)
![Fit a second degree parabola to the following data](https://bachelorexam.com/wp-content/uploads/2023/04/image-781.png)
![Fit a second degree parabola to the following data](https://bachelorexam.com/wp-content/uploads/2023/04/image-781.png)
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.
![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](https://bachelorexam.com/wp-content/uploads/2023/04/image-782.png)
![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](https://bachelorexam.com/wp-content/uploads/2023/04/image-782.png)
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.
![Find the coefficient of correlation (r) and obtain the equation to the lines of regression for the following data](https://bachelorexam.com/wp-content/uploads/2023/04/image-783.png)
![Find the coefficient of correlation (r) and obtain the equation to the lines of regression for the following data](https://bachelorexam.com/wp-content/uploads/2023/04/image-783.png)
![Find the coefficient of correlation (r) and obtain the equation to the lines of regression for the following data](https://bachelorexam.com/wp-content/uploads/2023/04/image-784.png)
![Find the coefficient of correlation (r) and obtain the equation to the lines of regression for the following data](https://bachelorexam.com/wp-content/uploads/2023/04/image-784.png)
![bachelor exam preparation all question paper with solution important questions with solution](http://bachelorexam.com/wp-content/uploads/2023/01/cute-teddy-3.png)
![bachelor exam preparation all question paper with solution important questions with solution](http://bachelorexam.com/wp-content/uploads/2023/01/cute-teddy-3.png)
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
Link Name | Links |
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Btech AKTU Circulars | Links |
Btech AKTU Syllabus | Links |
Btech AKTU Student Dashboard | Student Dashboard |
AKTU RESULT (One VIew) | Student Result |
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