alleryTwo dice are thrown. The probability that the sum of the numbers is at most 4 is:
A1/9 of throws
B1/6 of throws
C5/36 of throws
D1/12 of throws
Answer & Solution
Correct answer: B. 1/6 of throws
1. Sum 2: (1,1). Sum 3: (1,2), (2,1). Sum 4: (1,3), (2,2), (3,1).
2. Favourable outcomes: 1 + 2 + 3 = 6 out of 36.
3. P(sum at most 4) = 6/36 = 1/6.
_Source: syllabus Mathematics, Ch 14 'Probability' (kemh114)_
Keep practising Statistics and Probability
Browse all Statistics and Probability questions for JEE Advanced, or explore more Mathematics topics.
Related questions
For two events, P(A) = 0.54, P(B) = 0.69 and P(A and B) = 0.35. The probability that A occA fair coin is tossed three times. The probability of getting exactly two heads is:One card is drawn from a pack of 52. The probability that it is a red king is:A and B are mutually exclusive, P(not A) = 0.65 and P(A or B) = 0.85. Then P(B) equals:A fair coin is tossed three times. The probability of getting at least one head is:A, B and C are mutually exclusive and exhaustive with P(A) = 1/2 and P(B) = 1/3. Then P(C)One card is drawn from a pack of 52. The probability that it is neither a king nor a queenTwo dice are thrown together. The probability of getting a doublet is: