4 Answered Questions for the topic Adding Probabilities

Adding Probabilities

03/31/20

Two letters are chosen at random from the word delete and two are chosen at random from the word enter. what is the probability that the selection contains 4 e's or no e's?
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Adding Probabilities

05/07/15

Two letters are chosen at random from the word GEESE and two are chosen at random from the word PLEASE. What is the probability that all four letters (cont.)
are E's or none of the letters is an E. answer 3/50   I have the correct answer for these events in Adding Probabilities, but I am a substitute teacher, my degree is in music. I need to help the... more
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Adding Probabilities Inclusive Events

05/06/15

Two cards are drawn from a standard deck of cards. Find each probability: (See in the Description)
1. P(both kings or both face cards) ans. 11/221   2. P(both either red or a king) ans. 63/221   I have the correct answers for these events in Adding Probabilities, but I am a substitute... more
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Adding Probabilities Mutually Exclusive Events

05/06/15

7 girls and 6 boys go into a store at the same time. There are 5 salesmen to help them. Find the probability that the salesmen will first help (continued below)
numbers of girls and boys.   1. P(3 girls or 3 boys)  ans. 105/143   2. P(at least 3 girls)  ans. 84/143   3. P(at least 2 boys) ans. 32/39   I have the correct answers for these Mutually... more
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