Question

The table shows the blood pressures of 16 clinic patients. What is the interquartile range of the data?

A) 7.75
B) 8.50
C) 9.25
D) 10.75​

Answer 1

I’ve attached my work below....
I ran out of space so the step 5 the last step is subtract q1 and q3 which step 3 and 4
So 90.9-81.8=9.1