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Chris from Randolph, NJ's Resources

Which of the following 3 games of chance should you play? 1. Draw a card from a standard deck. If it is an ace, you win $5; if it is red, you win $1 ( a red ace wins $6); anything else, you lose...

The probability that a patient will have a negative reaction to a certain medication is 0.03. The medication is administered to 75 patients. What is the expected number of negative reactions?

You pay $1 for one of 1000 tickets at a fair. 4 numbers are drawn. The holder of the first number drawn will win $500, the holders of the remaining 3 numbers will each receive $100. What are your...

You roll a die. If you roll an odd number, you will receive as many dollars as the number rolled. If you roll an even number, you will lose as many dollars as the number rolled. What are your expected...

In how many different ways can you select 4 freshmen, 5 sophomores, 3 juniors, and 7 seniors from a group containing 15 students of each standing?

In how many different ways can you grab 3 red marbles, 2 white marbles, and 2 blue marbles from an urn containing 10 red, 8 white, and 4 blue marbles?

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