34. given 21 and 23 are supplementary,
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An assembly consists of two mechanical components. suppose that the probabilities that the first and second components meet specifications are 0.87 and 0.84. assume that the components are independent. determine the probability mass function of the number of components in the assembly that meet specifications. x

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

The function models the number of accidents