(Answered) Two students jen and john are registered for the same class

Statistics

Two students, Jen and John, are registered for the same class and attend independently to each other, Jen 82.5% of the time and John 95% of the time. What is the probability that on any given day

a) Both will be in class?

b) At least one of them will not be in class?

In a study to determine frequency and dependency of color-blindness relative to females and males, people were chosen at random and the following results were recorded: Female Male

Color-Blind 7 44

Not Color-Blind 619 583

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