You operate a game at an amusement park where people throw darts at balloons and

Question

You operate a game at an amusement park where people throw darts at balloons and try to win prizes. Players get to throw 5 darts. From prior experience, you know that the probability of success (popping a balloon) for each dart is .15. A Poisson distribution called Q has an expectation of 4. Which of the following R commands would tell you the probability that a randomly selected value from Q is less than 6 and greater than or equal to 4 (read the question carefully): Select one: a. ppois(6, 4) - ppois(3, 4) b. ppois(6, lambda=4) - ppois(4, lambda=4) c. ppois(5, 4) - ppois(3, 4) d. ppois(5, 4) - ppois(4, 4) e. ppois(6 - 4, lambda=4)

Explanation / Answer

Probability Q is less than 6 & greater than or equal to 4

Means probability that Q is 4 & 5 .

Right R command is ppois(5,4) -ppois(3,4)

Answer is "C"

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