<PRE><B>Question 327199</B>
The probability that house sales will increase in the next 6 months is estimated to be 0.25 
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the probability that the interest rates on the housing loans will go up is estimated to be 0.7 
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the probability that house sales and interest rates will go up in the next 6 months is estimated to be 0.20 
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the probability that house sales or interest rates will increase during in the 6 months is
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P(hsup OR irup) = P(hsup) + P(irup) - P(hsup AND irup)
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= 0.25 + 0.70 - 0.20
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= 0.75
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Cheers,
Stan H.
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a) 0.75 b)0.85 c) 0.705 d)0.90
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