ITPEC FE Morning October 2019 Question 3
ITPEC FE Morning October 2019 — Question 3 of 80
Probability — favorable outcomes over total — basic probability of selecting one of two flavors.
Total candies: 6 + 12 + 8 + 4 = 30
Favorable (lemon or orange): 6 + 8 = 14
P = 14 / 30 = `7/15`
Why not others:
- (a) 4/9 — no combination of flavors produces this fraction
- (c) 6/11 — no combination of flavors produces this fraction
- (d) 7/8 — far too high; would mean almost all candies match
Key rule: P(A or B) = (count of A + count of B) / total, when events are mutually exclusive.
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