The following marks were obtained by twenty students in an examination: 53, 30, 70, 84, 59, 43, 90, 20, 78, 48, 44, 60, 81, 73, 50, 37, 67, 68, 64, 52. Find the numbers of students who scored at least 50 marks
A
6
B
10
C
13
D
14
Verified Correct Answer: D.
Step-by-Step Mathematical Solution
Number of students scoring at least 50 marks = Number of students scoring 50 and above
From the table 53, 70, 84, 59, 90, 60, 81, 73, 50, 37, 67, 68, 64, 52. Hence, 14 students scored at least 50 marks
Source: Myschool Past Questions Archive (Record #31266)