Answer:
0.25
Step-by-step explanation:
Use binomial probability:
P = nCr pʳ qⁿ⁻ʳ
where n is the number of trials,
r is the number of successes,
p is the probability of success,
and q is the probability of failure (1−p).
P = ₄C₃ (0.5)³ (1−0.5)⁴⁻³
P = 4 (0.5)³ (0.5)
P = 0.25
