CA Foundation P3 · Chapter 16 · Question 3 of 9
A fair coin is tossed 4 times. The probability of getting exactly 2 heads is:
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: B) 0.375
Explanation
P(X = 2) = ⁴C₂ (1/2)² (1/2)² = 6 x 1/16 = 6/16 = 0.375. Omitting the ⁴C₂ factor gives 1/16 = 0.0625.
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