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Unformatted text preview:  and , D to those whose score is between 2 and  , and to those getting a score below 2 . Calculate the probability that a student will get A, B, C, D, respectively. 5. An expert witness in a paternity suit testiFes that the length (in days) of pregnancy (that is, the time from impregnation to the delivery of the child) is approximately normally distributed with parameters = 270 and 2 = 100. The defendant in the suit is able to prove that he was out of the country during a period that began 290 days before the birth of the child and ended 240 days before the birth. If the defendant was, in fact, the father of the child, what is the probability that the mother could have had the very long or very short pregnancy indicated by the testimony? 6. Problem 3.59 1...
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 Spring '05
 Roychowdhary

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