Class 12 Mathematics Correlation and Regression Notes and Important Questions
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Notes for Class 12 Correlation and Regression (Mathematics) are shown above.
Practice
Important Questions
The height in inches (X) and weight in kg (Y) of 7 students are given below:
Height (X) | 60 | 61 | 62 | 63 | 64 | 65 | 66 |
|---|---|---|---|---|---|---|---|
Weight (Y) | 62 | 63 | 61 | 64 | 66 | 67 | 64 |
Find the correlation coefficient between X and Y and also find regression coefficient of X on Y.
Consider the following data for supply () and the price () of a commodity for last six years.
Year in B.S. | 2075 | 2076 | 2077 | 2078 | 2079 | 2080 |
45 | 50 | 56 | 62 | 65 | 70 | |
65 | 70 | 75 |
Find the correlation coefficient between and .
Calculate the supply when the price of commodity is Rs. 150.
The supply and price of a commodity for the last six year is given below.
Price in Rs. per kg | 100 | 110 | 112 | 115 | 120 | 140 |
|---|---|---|---|---|---|---|
Supply in kg | 30 | 40 | 45 | 20 | 55 | 55 |
Find the coefficient of correlation between price and supply.
Estimate supply in kg on which rate of price is Rs 150.
Exam
Past Question Analysis
Historical exam-pattern data from past NEB question papers — not a prediction of future questions.
1
Question Items
5
Total Marks
1
Papers Appeared In
| Year | Question Items | Marks |
|---|---|---|
| 2083 | 1 | 5 |
This page covers Correlation and Regression, chapter 9 of 17 in the Class 12 Mathematics syllabus set by the National Examination Board (NEB). 3 important questions for this chapter are available, each with a full solution.
For numerical and derivation-based chapters like this one, working through past NEB questions is usually more useful than re-reading notes alone — try solving each important question above before checking the solution, then compare your working step by step.