If Q1 = 150 and Q3 = 250,the upper fences (inner and outer)are
A)450 and 600.
B)350 and 450.
C)400 and 550.
D)impossible to determine without more information.

Question

Quizplus · Accepted Answer

To find the inner fences, we use the formula: 
Inner Fence = Q3 + 1.5*(IQR)
Where IQR = Q3-Q1
So, 
IQR = 250-150 = 100
Inner Fence = 250 + 1.5*(100) = 400

To find the outer fences, we use the formula: 
Outer Fence = Q3 + 3*(IQR)
So, 
Outer Fence = 250 + 3*(100) = 550

Therefore, the upper fences (inner and outer) are 400 and 550, respectively. The correct answer is C.

If Q1 = 150 and Q3 = 250,the Upper Fences