Answer:
Median: 23.5
Lower Quartile: 22.1
Upper Quartile: 26.3
Step-by-step explanation:
<em>To calulate the median</em><em>, arrange the set of values in order ranging from the least to greatest. Then select the value that's the middle point in the set.</em>
<u>21.0, 21.6, 22.1, 22.3, 22.7, </u><u>23.5</u><u>, 24.0, 25.5, 26.3, 28.6, 29.2</u>
<em />
<em>The median value would be 23.5 as it's the middle point in the set.</em>
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<em>To calculate the lower quartile</em><em>, select the median of the lower half of the set.</em>
<em />
<u>21.0, 21.6, </u><u>22.1</u><u>, 22.3, 22.7</u>, 23.5, 24.0, 25.5, 26.3, 28.6, 29.2
<em>To calculate the upper quartile</em><em>, select the median of the upper half of the set.</em>
<em />
21.0, 21.6, 22.1, 22.3, 22.7, 23.5, <u>24.0, 25.5, </u><u>26.3</u><u>, 28.6, 29.2</u>