Answer:
0.206
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).
n = 15, r = 10, p = 0.7, and q = 0.3.
P = ₁₅C₁₀ 0.7¹⁰ 0.3⁵
P = 0.206
