document.write( "Question 1112344: Each day, a weather forecaster predicts whether or not it will rain. For 80% of rainy days, she correctly predicts that it will rain. For 91% of non-rainy days, she correctly predicts that it will not rain. Suppose that 9% of days are rainy and 91% are non-rainy.
\n" ); document.write( "What proportion of the forecasts are correct? \n" ); document.write( "

Algebra.Com's Answer #727481 by Boreal(15235) $\"\"$ $\"About$

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9*0.8=7.2
\n" ); document.write( "91*.91=82.81
\n" ); document.write( "the sum is 90.01 per cent \n" ); document.write( "

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