For the following data of marks of 7 students in physics (x) and Mathematics (y), draw scatter diagram and state the type of correlation. x 8 6 2 4 7 8 9 y 6 5 1 4 4 7 8 - Mathematics and Statistics

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Diagram

For the following data of marks of 7 students in physics (x) and Mathematics (y), draw scatter diagram and state the type of correlation.

x 8 6 2 4 7 8 9
y 6 5 1 4 4 7 8
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Solution

We take marks in Physics on X-axis and marks in Mathematics on Y-axis and plot the points as below.

We get a band of points rising from left to right. This indicates the positive correlation between marks in Physics and marks in Mathematics.

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Chapter 5: Correlation - Exercise 5.1 [Page 63]
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