Probability
Binomial Distribution
Grade 12
Question:
<p>In a series of three trials the probability of exactly two successes in nine times as large as the probability of three successes. Then, the probability of success in each trial is</p>
<p>(a) \(\frac{1}{2}\)</p>
<p>(b) \(\frac{1}{3}\)</p>
<p>(c) \(\frac{1}{4}\)</p>
<p>(d) \(\frac{3}{4}\)</p>
Step-by-Step Solution
Key Concept: Use binomial probability formula to relate the probability of exactly 2 successes to 3 successes in 3 trials.
<p>Not provided in source text</p>
Correct Answer: b