document.write( "Question 1118088: https://vle.mathswatch.co.uk/images/questions/question17972.png please help \n" ); document.write( "
Algebra.Com's Answer #733327 by KMST(5328)\"\" \"About 
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The probability of rain is \"%2270%25%22=70%2F100=0.7\" on each day for Friday Saturday and Sunday.
\n" ); document.write( "That means that the probability that it will not rain is \"%2230%25%22=30%2F100=0.3\" for each day.
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\n" ); document.write( "a) The probability that it will rain all 3 days is
\n" ); document.write( "\"0.7%2A0.7%2A0.7=highlight%280.343=%2234.3%25%22%29\" .
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\n" ); document.write( "b) The probability that it will rain on exactly two consecutive days between Friday and Sunday includes two cases:
\n" ); document.write( "1) either the day it does not rain is Sunday, but it rains the two days before, or
\n" ); document.write( "2) it does not rain on Friday, and then it rains the two days after that.
\n" ); document.write( "The probability that it will rain on Friday and Saturday, but not on Sunday is
\n" ); document.write( "\"0.7%2A0.7%2A0.3=0.147\" .
\n" ); document.write( "The probability that it will rain on Saturday and Sunday, but not on Friday is also
\n" ); document.write( "\"0.147\" .
\n" ); document.write( "So, the probability that it will rain on exactly two consecutive days between Friday and Sunday is
\n" ); document.write( "\"0.147%2B0.147=highlight%280.294=%2229.4%25%22%29\" .
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