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 15,014 children.a. Assuming that this tumor occurs as usual, find the mean number of cases in groups of15,014 children.b. Using the unrounded mean from part (a), find the probability that the number of tumor cases in a group of 15,014 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?....a. The mean number of cases is(Type an integer or decimal rounded to three decimal places as needed.)

Answered: A rare form of malignant tumor occurs…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Suppose that the speed at which cars go on the freeway is normally distributed with mean 79 mph and standard deviation 9 miles per hour. Let X be the speed for a randomly selected car. Round all answers to 4 decimal places where possible.b. If one car is randomly chosen, find the probability that it is traveling more than 75 mph. c. If one of the cars is randomly chosen, find the probability that it is traveling between 78 and 81 mph. d. 60% of all cars travel at least how fast on the freeway? mph.
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