WAEC - Mathematics (2020 - No. 44)
The interquartile range of distribution is 7. If the 25th percentile is 16, find the upper quartile.
35
30
23
9
คำอธิบาย
Q\(_3\) - Q\(_1\) = 7
Q\(_3\) - 16 = 7
Q\(_3\) - 7 + 16
= 23
Q\(_3\) - Q\(_1\) = 7
Q\(_3\) - 16 = 7
Q\(_3\) - 7 + 16
= 23