Question

Find the interquartile range for the given set of data.

{23.5, 22.1, 24.0, 28.6, 26.3, 29.2, 21.0, 22.7, 25.5, 22.3, 21.6}
A.
4.2
B.
8.2
C.
48.4
D.
50.2



Variation is a term that is used to describe __________.
A.
how repetitive a data set is
B.
how large or small a data set is
C.
how spread out or scattered a data set is
D.
how different a data set is from other data sets

Answer 1

put the numbers in order
21.0 , 21.6, 22.1, 22.3, 22.7, 23.5, 24.0, 25.5, 26.3, 28.6, 29.2

Q1 = 22.1
Q2 (median) = 23.5
Q3 = 26.3

Interquartile range (IQR) = Q3 - Q1 = 26.3 - 22.1 = 4.2 <===

Variation is a term that is used to describe : (C) how spread out or scattered a data set is

Answer 2

we are given the data set {23.5, 22.1, 24.0, 28.6, 26.3, 29.2, 21.0, 22.7, 25.5, 22.3, 21.6} and is asked in the problem the interquartile range. The range is the difference of the highest number and the lowest number. The numbers are 29.2 and 21.0 equal to B. 8.2 .Variation is associated with how spread out or scattered a data set is