A coin is tossed 5 times. The probability of a head is 0.5. The probability of…
2024
A coin is tossed 5 times. The probability of a head is 0.5. The probability of exactly 3 heads is
- A.
0.0625
- B.
0.1875
- C.
0.3125
- D.
0.4375
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Show answer & explanation
Correct answer: C
Correct Option
Option 3: 0.3125
Summary Solution
The probability of exactly 3 heads in 5 tosses is calculated using the binomial distribution formula: P(X=3) = C(5,3) * 0.5^3 * (1-0.5)^2 = 10 * 0.125 * 0.25 = 0.3125.