alleryThree coins are tossed. The probability of getting at least one head is
A5/8
B3/8
C7/8
D1
Answer & Solution
Correct answer: C. 7/8
1. Total outcomes = 2^3 = 8.
2. P(no head) = P(TTT) = 1/8.
3. P(at least 1 head) = 1 - P(no head) = 1 - 1/8.
4. = 7/8.
_Source: ICAI BoS Foundation Paper 3, Ch 15 'Probability', p.7_
Keep practising Probability
Browse all Probability questions for AP Intermediate 2nd Year, or explore more Mathematics topics.
Related questions
A bag has 3 red and 5 blue balls. One ball drawn at random. Probability it is red isFrom a deck of 52 cards, one is drawn. The probability that it is a red queen isA card is drawn from a standard deck of 52 cards. The probability of drawing an ace isTwo coins are tossed. The probability of getting two heads isProbability of a sure event isA die is rolled. The probability of getting an even number isA coin is tossed once. The probability of getting heads isProbability claims — true or false?