Mrs. Allenson wanted to know to how many students in her class had brothers or sisters;...
Mrs. Allenson wanted to know to how many students in her class had brothers or sisters; out of her 50 students, 22 students said that they had a brother (B) and 38 students had a sister (S).
A. What are the changes that a randomly selected study has both a brother and a sister?
B. Calculate (B | A)
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Mrs. Allenson wanted to know to how many students in her class
had brothers or sisters;...
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