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Sagot :
Answer:
The interquartile range is 30
Step-by-step explanation:
Here, we want to get the interquartile range
We start by arranging the numbers in order
10,20,30,40
The first quartile is;
(n + 1)/4 th term = (4+ 1)/4 = 5/4 = 1.25
This is approximately the first term = 10
Q3 is the third quartile
That is;
3(n + 1)/4 = 3(5)/4 = 15/4 =3.75
This is approximately the 4th term = 40
The interquartile range is the difference between the first and third quartile
Mathematically, we have that as;
40 - 10 = 30
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