Question

What was the interqualtile range of the marks

Answer 1

Heyy

Step-by-step explanation:

The inter-quartile range is found by subtracting the lower quartile from the upper quartile. For example, the examination marks for 20 students following a particular module are arranged in order of magnitude. The inter-quartile range for this dataset is therefore 70.5 - 52.5 = 18 whereas the range is: 80 - 43 = 37.

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Answer 2

Answer:

Hey

The range is the difference between the maximum and minimum values. All the data are within an interval of this width. The interquartile range is the difference between the upper quartile and lower quartile. Half of the data lie between the two quartiles, so an interval of this width includes half the data.

STEPS

Order the data from least to greatest.

Order the data from least to greatest.Find the median.

Order the data from least to greatest.Find the median.Calculate the median of both the lower and upper half of the data.

Order the data from least to greatest.Find the median.Calculate the median of both the lower and upper half of the data.The IQR is the difference between the upper and lower medians.

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