exam Maths Puzzle Numerical Ability

The paired data below consist of the test scores of 6 randomly selected students and the number of hours they studied for a test. Find the value of the linear correlation coeffici

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A piece of wire having a total length of 72 cm was cut into two unequal segments and bent to form two unequal squares. If the total area of the squares is 180-sq.cm.,what is the difference in the lengths of the two segments? i m thinking of 3 consecutive odd integer. the sum of the first and last of these integers is 26. what are the integers