A box plot is drawn using a 12-inch ruler as the scale. The box extends from 3.5 inches to 6.0 inches. Which of the following represents the upper boundary for outliers (that is, the smallest value beyond which you will find outliers)?

A. 7.25 inches
B. 6 inches
C. 9.75 inches
D. 10.5 inches
E. 3.75 inches

Question

A box plot is drawn using a 12-inch ruler as the scale. The box extends from 3.5 inches to 6.0 inches. Which of the following represents the upper boundary for outliers (that is, the smallest value beyond which you will find outliers)?

A. 7.25 inches 
B. 6 inches
C. 9.75 inches
D. 10.5 inches
E. 3.75 inches

rational · Answer

can you find the IQR from the given info

rational · Answer

http://www.bbc.co.uk/staticarchive/efbb442e599e8ed46c183917f8ffbd90cfc82cab.gif

hockeychick23 · Answer

ok, would it be 4.75?

rational · Answer

Nope, IQR = width of the box  = 6-3.5 = ?

hockeychick23 · Answer

oh sorry ok its 2.5

rational · Answer

Yes! work the upper boundary :
$$\text{Q3} + 1.5\times \text{IQR}$$

hockeychick23 · Answer

ok so 6 + (1.5*2.5)= 3.75+6= 9.75

rational · Answer

Yep!

hockeychick23 · Answer

thanks!

rational · Answer

np