Eryn Has Just Bought Two Stocks: a and B

question 116

Multiple Choice

Eryn has just bought two stocks: A and B.She estimates that stock A has an 80% chance of increasing in value.She estimates that stock B has a 70% chance of increasing in value.She also estimates that if stock A increases in value, the chance that stock B will increase jumps to 75%.What's the probability that at least one of the stocks will increase in value?

• A).24
• B).20
• C).26
• D).90
• E).56

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