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March 30, 2017

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1.) two marbles are drawn without replacement from a bowl containing seven red, four blue, and nine yellow marbles. what is the probability that at least one is red?

2.)a card is drawn from a standard deck of 52 cards. what is the probability that the card is neither a four or a five?

3.)At Studymore University, 46% of students are female and 13% of the female students are psychology majors. 9% of all students are psychology majors. a student is selected at random. what is the probability that the person selected is a female psychology major?

4.)you supervise 12 nurses. in how many ways can you choose four nurses to have the weekend off? what is the probability that four chosen individuals will have the weekend off?

  • Probabilities - ,

    We do not do your work for you. Once you have answered your questions, we will be happy to give you feedback on your work. Although it might require more time and effort, you will learn more if you do your own work. Isn't that why you go to school?

    However, I will start you out with the first problem.

    1. You are looking for probability of either one red or two reds.

    One red = 7/20 * 13/19

    Two reds = 7/20 * 6/19

    Either-or probability is founds by adding the individual probabilities.

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