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3 years ago

Find the interquartile range of the data. 4,6,4,2,9,1,12,7

Mathematics

1 answer:

mariarad [96]3 years ago

3 0

Answer:

<u>Arrange</u>: 1, 2, 4, 4, 6, 7, 9, 12.

(Q1) = (N + 1) × 1/4.

4 + 1 × 1/4 = 5/4

(Q3) = (N + 1) × 3/4.

6 + 1 × 3/4 = 21/4

So, IQR = Q3 - Q1

21/4 - 5/4 = 21 - 5/4
16/4 = 4

Explanation:

<u>Do these simple steps to find IQR if any data</u>:-

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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