SOLUTION: How many people in a school of 1,000 are likely wearing a gray t shirt and blue jeans if there are 4 people wearing a gray shirt and 20 wearing blue jeans in a class of 35?
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Question 1163835: How many people in a school of 1,000 are likely wearing a gray t shirt and blue jeans if there are 4 people wearing a gray shirt and 20 wearing blue jeans in a class of 35?
Not enough information. You cannot assume independence between P(A), grey shirt and P(B) blue jeans, and you haven't either specified independence or provided P(A|B) or P(B|A).
John
My calculator said it, I believe it, that settles it