The number of hours study by 12 randomly selected students in a week were as follows. 40 35 30 14 17 21 21 28 18 21 16 20 Using Chebyshev's theorem, find the minimum percentage of data values that will fall between 16.42 and 30.42. Find the Z score for the student who studied 32 hours. Check the data set for any outlier.

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Rate of Change

The relation between two quantities which displays how much greater one quantity is than another is called ratio.

Slope

The change in the vertical distances is known as the rise and the change in the horizontal distances is known as the run. So, the rise divided by run is nothing but a slope value. It is calculated with simple algebraic equations as: