Mathematics, 20.06.2020 22:57 nani97
A rare form of malignant tumor occurs in 11 children in a million, so its probability is 0.000011. Four cases of this tumor occurred in a certain town, which had 15 comma 115 children. a. Assuming that this tumor occurs as usual, find the mean number of cases in groups of 15 comma 115 children. b. Using the unrounded mean from part (a), find the probability that the number of tumor cases in a group of 15 comma 115 children is 0 or 1. c. What is the probability of more than one case? d. Does the cluster of four cases appear to be attributable to random chance? Why or why not?
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Mathematics, 21.06.2019 18:20
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A rare form of malignant tumor occurs in 11 children in a million, so its probability is 0.000011. F...
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