The list shows the number of employees at seven companies.
525,650,539,643,764,539,687
What is the interquartile of these numbers
To find the interquartile range, we first need to find the first quartile (Q1) and the third quartile (Q3).
First, let's arrange the numbers in ascending order:
525, 539, 539, 643, 687, 764, 650
In this case, we only have an odd number of data points, so the median is the middle number, which is 643.
Now we need to find the median of the lower half of the data and the median of the upper half of the data to find Q1 and Q3.
Lower half: 525, 539, 539
Upper half: 650, 643, 687, 764
Q1 is the median of the lower half: (539 + 539) / 2 = 539
Q3 is the median of the upper half: (643 + 687) / 2 = 665
Now, we can calculate the interquartile range (IQR) by subtracting Q1 from Q3:
665 - 539 = 126
Therefore, the interquartile range of the numbers is 126.