These box plots show daily low temperatures for a sample of days in two different towns.
Answer: B. The interquartile range (IQR) for town A, 20", is greater than the IQR for town B, 10'.
Explanation:
IQR=Q₃-Q₁.
For the town A:
Q₃=40 and Q₁=20.
IQR of town A=40-20=20.
For the town B:
Q₃=30 and Q₁=20.
IQR of town A=30-20=10.
The most statement is appropriate comparison of the spreads is B (The interquartile range (IQR) for town A, 20, is greater than the IQR for town B, 10).