Summary information is given for the weights (in pounds) of 1000 randomly sampled tractor trailers. $$\begin{array} { l r l r }
\text { MIN: } & 4015 & 25 \% : & 5615 \
\text { MAX: } & 10,615 & 75 \% : & 8615 \
\text { AVE: } & 7015 & \text { Std. Dev.: } & 1400
\end{array}$$ Find the percentage of tractor trailers with weights between 5615 and 8615 pounds.
A) 50%
B) 75%
C) 25%
D) 100%

Question

Summary information is given for the weights (in pounds) of 1000 randomly sampled tractor trailers. $$\begin{array} { l r l r } 
\text { MIN: } & 4015 & 25 \% : & 5615 \
\text { MAX: } & 10,615 & 75 \% : & 8615 \
\text { AVE: } & 7015 & \text { Std. Dev.: } & 1400
\end{array}$$ Find the percentage of tractor trailers with weights between 5615 and 8615 pounds.
A) 50%
B) 75%
C) 25%
D) 100%

Quizplus · Accepted Answer

The weights between 5615 and 8615 pounds represent the interquartile range (IQR), which contains the middle 50% of the data.

Summary Information Is Given for the Weights (In Pounds) of 1000