Your church does not have a Sunday School teacher for the pr…
Your church does not have a Sunday School teacher for the preschool class. They ask you to teach it for the whole upcoming year. You explain why this will not be possible. So, they ask if you will teach it for a month, while they look for someone else. Your agreement is testament to the
Read DetailsThe Smith family have three children. At least one of them i…
The Smith family have three children. At least one of them is boy. Enumerate all possible results from this fact. (For instance, you may use (B, G) to represent a girl and a boy, and there is no order considered here) If each case has same chance to happen, what is the probability that two are boys and one is a girl.
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