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What is a perfect negative correlation?

Important Questions on Interpreting and Comparing Data

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Write down the type of correlation shown in the scatter graph.

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Write down the type of correlation shown in the scatter graph.

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MEDIUM

Look at the following pattern

12=1112=1211112=1232111112=1234321111112=123454321

What will be the conjecture about, 1111112=?

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Write down the type of correlation shown in the scatter graph.

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How do you interpret the coefficient of correlation which lies between 0 and +1?
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What is the value of ‘r’ when two variables are uncorrelated?
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If the two variables do not have linear relationship between them then they have a correlation coefficient equal to
MEDIUM

Observe the Pascal's triangle.

111121133114641

Line-1: 1=110

Line-2: 11=111

Line-3: 121=112

 Line-514641=11k

Find the value of k

EASY

Write down the type of correlation shown in the scatter graph.

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The height and weight of a group of persons will have _______ correlation.
MEDIUM

Look at the following pattern

12=1112=1211112=1232111112=1234321111112=123454321

What is the conjecture about, 11111112=?