Which number cannot represent a probability ? State with reasons.
(A) 1/3
(B) 2.5
(C) 18%
(D) 0.7
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In probability,
Favourable outcomes (F) < Total outcomes (T)
Examine :
(A) 1 / 3
F = 1
T = 3
F < T
•°• , this represents a probability.
(B) 2.5 = 25 / 10
F = 25
T = 10
F > T
•°•, this doesn't represent a probability.
(C) 18 % = 18 / 100
F = 18
T = 100
F < T
•°•, this represents a probability.
(D) 0.7 = 7 / 10
F = 7
T = 10
F < T
•°•, this represents a probability.
Hence, (B) is correct option.
Favourable outcomes (F) < Total outcomes (T)
Examine :
(A) 1 / 3
F = 1
T = 3
F < T
•°• , this represents a probability.
(B) 2.5 = 25 / 10
F = 25
T = 10
F > T
•°•, this doesn't represent a probability.
(C) 18 % = 18 / 100
F = 18
T = 100
F < T
•°•, this represents a probability.
(D) 0.7 = 7 / 10
F = 7
T = 10
F < T
•°•, this represents a probability.
Hence, (B) is correct option.
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