Lower quartile of $$$2$$$, $$$10$$$, $$$-1$$$, $$$-2$$$, $$$-10$$$, $$$5$$$, $$$-8$$$, $$$-9$$$, $$$-1$$$, $$$-1$$$, $$$8$$$, $$$1$$$, $$$8$$$, $$$6$$$, $$$9$$$

The calculator will find the lower (first) quartile (percentile no. $$$25$$$) of $$$2$$$, $$$10$$$, $$$-1$$$, $$$-2$$$, $$$-10$$$, $$$5$$$, $$$-8$$$, $$$-9$$$, $$$-1$$$, $$$-1$$$, $$$8$$$, $$$1$$$, $$$8$$$, $$$6$$$, $$$9$$$, with steps shown.

Related calculators: Upper Quartile Calculator, Five Number Summary Calculator, Box and Whisker Plot Calculator

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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