Lower quartile of $$$2$$$, $$$10$$$, $$$-1$$$, $$$-2$$$, $$$-10$$$, $$$5$$$, $$$-8$$$, $$$-9$$$, $$$-1$$$, $$$-1$$$, $$$8$$$, $$$1$$$, $$$8$$$, $$$6$$$, $$$9$$$
Related calculators: Upper Quartile Calculator, Five Number Summary Calculator, Box and Whisker Plot Calculator
Your Input
Find the lower quartile of $$$2$$$, $$$10$$$, $$$-1$$$, $$$-2$$$, $$$-10$$$, $$$5$$$, $$$-8$$$, $$$-9$$$, $$$-1$$$, $$$-1$$$, $$$8$$$, $$$1$$$, $$$8$$$, $$$6$$$, $$$9$$$.
Solution
The lower (first) quartile $$$Q_{1}$$$ is equal to the percentile no. $$$25$$$.
The percentile no. $$$25$$$ is $$$-2$$$ (for steps, see percentile calculator).
Answer
$$$Q_{1} = -2$$$A