Statiatics

Need help please.

Determine whether each experiment is a binomial experiment or can be reduced to a binomial experiment. If so, describe a trial, determine the random variable, and state n, p and q.

a) You roll a die 15 times and find the sum of all the rolls.

Just need this one. I already got b and c.

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  1. And need help on thos one: You have a bag of marbles containing 4 blue marbles, 5 red marbles, and 3 green marbles. What is the theoretical probability of pulling a red marble? Run an experiment to see how long it takes you to pull a red marble (you don't have to use marbles) and see how the experimental and theoretical compare.

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  2. Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.

    I'll help on the last one.

    5/(5+4+3) = ?

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