Answer:
31
Step-by-step explanation:
The median of this data set is 42.
The 1st quadrant is the mean of 24 and 36: 30.
The 3rd quadrant is the mean of 57 and 65, or 61.
Thus, the IQR is the difference between 61 and 30: It is 31.
The IQR is 31
I used the IQR method and I got the answer. The upper quartile is 61 and the lower quartile is the 30
