Answer:
Mean=23
Median =23.5
Range=22
Interquartile range = 14
Step-by-step explanation:
Given set of data
11,13,17,20,22,25,27,31,31,33
Mean [tex]=\frac{11+13+17+20+22+25+27+31+31+33}{10}[/tex]
[tex]=\frac{230}{10}[/tex]
=23
The[tex](\frac{n}{2})[/tex] th term= the 5th term
=22
The [tex](\frac{n}{2}+1)^{th}[/tex] term = The [tex]6^{th[/tex] term
= 25
The median = [tex]\frac{22+25}{2}[/tex]
=23.5
Range = Highest term - lowest term
=33- 11
=22
Here lower half {11,13,17,20,22}
The middle number of lower half is first quartile.
Q₁ = 17
And lower half is{25,27,31,31,33}
The middle number of upper half is third quartile.
Q₃=31
Interquartile Range =Q₃-Q₁
=31-17
=14
