Answer:
Interquartile range is 6.5
Step-by-step explanation:
4, 6, 7, 10, 11, 12, 14, 15
Median: 10.5
Lower quartile: 6.5 ( I got 6.5 by adding both 6 and 7 which gives us 13, then divide 13 with 2 which gives us the lower quartile of 6.5)
Upper quartile: 13
Interquartile range: 13 - 6.5 = 6.5
~hope this helps~
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