Mathematics, 26.11.2019 02:31, atkinsonsinbraz
According to a survey 65% of murders committed last year were cleared by arrest or exceptional means. 50 murders committed last year are randomly selected and the number cleared is recorded. a) find the probability that exactly 41 murders were cleared. b)the probability that between 36 and 38 of the murders, inclusive were cleared is? c) would it be unusual if fewer than 20 of the murders were cleared? why or why not?
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