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14 Sep 2021, 05:45
Kudos
Bookmarks
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
82% (01:33) correct
18%
(01:34)
wrong
based on 62
sessions
History
Date
Time
Result
Not Attempted Yet
In a group of 80 students, 24 are enrolled in geometry, 40 in biology, and 20 in both. If a student were randomly selected from the 80 students, what is the probability that the student selected would not be enrolled in either course?
(A) 0.20
(B) 0.25
(C) 0.45
(D) 0.55
(E) 0.60
(A) 0.20
(B) 0.25
(C) 0.45
(D) 0.55
(E) 0.60
14 Sep 2021, 05:55
Kudos
Bookmarks
Students enrolled in either course = 24 + 40 - 20 = 44
Students not enrolled in either course = 80 - 44 = 36
Probability that the student selected would not be enrolled in either course = 36/80 = 0.45
Hence, OA is (C).
Students not enrolled in either course = 80 - 44 = 36
Probability that the student selected would not be enrolled in either course = 36/80 = 0.45
Hence, OA is (C).
