#### Answer

See answers below

#### Work Step by Step

a) Arrange the data in order from least to greatest.
$60$ ; $65$ ; $75$ ; $75$ ; $75$; $85$ ; $85$ ; $85$ ; $95$ ; $100$ ; $105$
Median: $85$
The minimum is $60$. The maximum is $105$. The median is $85$.
First quartile : $\frac{75+75}{2}=75$
Third quartile : $\frac{85+95}{2}=90$
The first quartile is $75$. The third quartile is $90$.
b) Arrange the data in order from smallest to largest:
$5$ ; $7$ ; $11$ ; $19$ ; $21$; $53$
Median: $\frac{11+19}{2}=15$
The minimum is $5$. The maximum is $53$. The median is $15$.
First quartile : $7$
Third quartile : $21$
The first quartile is $7$. The third quartile is $21$.