The scores of twenty students in a test are as follows: 44, 47, 48, 49, 50, 51, 52, 53, 53, 54, 58, 59, 60, 61, 63, 65, 67, 70, 73, 75. Find the third quartile.
-
A.
62 -
B.
63 -
C.
64 -
D.
65
Correct Answer: Option B
Explanation
Third quartile Q3 = (frac{3}{4})Nth
= (frac{3}{4}) x 20th score
= 15th score
= 63