A-level Maths · Statistical distributions

Binomial probabilities

Find P(X = r), P(X ≤ r) or P(X ≥ r) for a binomial distribution, to 4 decimal places.

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Question 1

The random variable X∼B(9,0.4)X \sim B(9, 0.4). Find P(X≥6)P(X \ge 6). Give your answer to 4 decimal places.

You can type 4.53, 3.2e-5, 3.2 × 10^-5 or 7/3.

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