A particular drug therapy is known to have a 60% cure rate. For a drug trial consisting of 30 patients, construct the binomial distribution and the cumulative binomial distribution for the number of people cured. Graph both distributions. Find the probability that: a) 15 people are cured. b) more than 20 people are cured. c) between 17 and 25 people (inclusive) are cured. d) fewer than 10 people are cured.

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