The interquartile range of distribution is 7. If the 25th percentile is 16, find the upper quartile.
A
35
B
30
C
23
D
9
Verified Correct Answer: C.
Step-by-Step Mathematical Solution
Q\(_3\) - Q\(_1\) = 7
Q\(_3\) - 16 = 7
Q\(_3\) - 7 + 16
= 23
Source: Myschool Past Questions Archive (Record #58406)