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Lower quartile of $$$1$$$, $$$-5$$$, $$$2$$$, $$$4$$$, $$$-3$$$, $$$6$$$, $$$7$$$, $$$0$$$, $$$2$$$, $$$5$$$, $$$-4$$$, $$$7$$$
Related calculators: Upper Quartile Calculator, Five Number Summary Calculator, Box and Whisker Plot Calculator
Your Input
Find the lower quartile of $$$1$$$, $$$-5$$$, $$$2$$$, $$$4$$$, $$$-3$$$, $$$6$$$, $$$7$$$, $$$0$$$, $$$2$$$, $$$5$$$, $$$-4$$$, $$$7$$$.
Solution
The lower (first) quartile $$$Q_{1}$$$ is equal to the percentile no. $$$25$$$.
The percentile no. $$$25$$$ is $$$- \frac{3}{2}$$$ (for steps, see percentile calculator).
Answer
$$$Q_{1} = - \frac{3}{2} = -1.5$$$A