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You arrange the data set in ascending order. You then find the observation such that a quarter of the observations are smaller than it and three quarters are bigger. That value is the lower quartile. Next find the observation such that three quarters of the observations are smaller than it and a quarter are bigger. That value is the upper quartile. Upper quartile minus lower quartile = IQR.
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What is a plain figure concept in math?
There is no such concept in maths. A plane figure is a mathematical concept but that is not what the question is about.
What does the word triangular mean in maths?
a triangle, a 3 sided figure, a figure with 3 points, etc.
What is the IQR of 44 46 1 68 87 99?
The IQR is 48. But for only 6 observations, it is an absurd measure to use.
What is plain figure in maths?
A shape in 2-dimensional space - a flat shape.
What does the perimeter mean in maths?
The length around a flat figure or the sum of its sides.
