Question
If the mean of the lower quartile and upper quartile is 10 and the semi-interquartile range is 5, then the lower quartile and the upper quartile respectively are and(1) 2,12(2) 3,13(3) 4,14(4) 5,15
Step 1
This can be written as: \[ \frac{Q1 + Q3}{2} = 10 \] Multiplying both sides by 2, we get: \[ Q1 + Q3 = 20 \] This is our first equation. Show more…
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