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1) What is the probability that one card selected from a deck of 52 is a club or a number card or both? 2)

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1) What is the probability that one card selected from a deck of 52 is a club or a number card or both? 2) A container contains 10 green tennis balls and 7 orange tennis balls. What is the probability of drawing 2 green tennis balls in a row? Draw without replacement. 3) 4) A die is rolled four times what is the probability of rolling 3 twos? A pair of dice is rolled 5 times, what is the probability of 3 sixes? 5) An internal study by the Technology Services department at Lahey Electronics revealed company employees receive an average of two emails per hour. Assume the arrival of these emails is approximated by the Poisson distribution. a) What is the probability Linda Lahey, company president, received exactly 1 email between 4pm and 5 pm yesterday? b) What is the probability she received 5 or more email during the period? c) What is the probability she did not receive any email during the period?

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