document.write( "Question 426630: I need some help on a couple of problems. Could some one walk me through step by step on them. Thanks\r
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document.write( "1)A town has 5-digit telephone numbers, none of which begins with
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document.write( "0. The third digit of the telephone number is an odd integer.\r
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document.write( "In how many ways can a wrong number be dialed if the last 2
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document.write( "digits of the number are correct?\r
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document.write( "2)A bag contains 10 green candies, 3 red candies, and 5 orange
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document.write( "candies.\r
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document.write( "What is the probability of drawing and eating first a green, then a
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document.write( "red, and then an orange candy?\r
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document.write( "3)A bag contains 9 balls numbered 1 through 9. A person draws 4
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document.write( "balls from the bag at the same time, and then the person writes
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document.write( "down the numbers on the balls in increasing order.\r
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document.write( "What is the probability that the sequence 2, 5, 7, 9 will be written
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document.write( "down?\r
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document.write( "4)An insurance company offers a one-year $250,000 life insurance
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document.write( "policy to 30-year-old females. Suppose the probability is 0.9995
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document.write( "that a 30-year old female will live for a year. The company wants
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document.write( "to make a profit of $175 per policy.\r
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document.write( "What should the insurance company charge for the policy?\r
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document.write( "5) A person has 3 differently colored coats: red, black, and white; and
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document.write( "3 differently colored hats: red, black, and white. The person
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document.write( "randomly grabs a hat and coat.\r
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document.write( "Find the probability that a red coat and a black hat are chosen.\r
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document.write( "6)A person randomly selects 4 cards (without replacement) from a shuffled deck of 52 cards of
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document.write( "which 26 are blue and the remaining 26 are red.\r
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document.write( "What is the probability that 1 card is blue and 3 are red?\r
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document.write( "7) A math student guesses all the answers on a 15 question quiz.\r
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document.write( "Assuming that the student guesses correctly 57% on each item, what is the probability of getting
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document.write( "at most 8 answers correct on the quiz?\r
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document.write( "8)A quiz contains 3 true or false questions. A student randomly selects answers.\r
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document.write( "Find the probability that the student answers at most 2 questions correctly.\r
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document.write( "Any help would be greatly appreciated.\r
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document.write( "Thanks
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document.write( "
Algebra.Com's Answer #296789 by richard1234(7193)![]() ![]() You can put this solution on YOUR website! One question per post, please. Also, 8 questions is not a \"couple\" of problems. \n" ); document.write( " |