The forecast calls for a 30 % chance of snow today and a 40 % chance of snow tomorrow. what are the chances it will rain two days in a row?

Question

The forecast calls for a   30  % chance of snow today and a   40  % chance of snow tomorrow. what are the chances it will rain two days in a row?

Jaylynn Huffman · Accepted Answer

Step 1If you base it on probability the formula looks like this  P  =  probability  (  A  )  =  event A (In this case it rains the first day)  (  B  )  =  event B (In this case it rains the second day)  P  (  A  ∪  B  )  = probability that both will occur  P  (  A  ∪  B  )  =  P  (  A  )  ×  P  (  B  )The probability that both will occur equals the probability that A will occur time the probability that B will occur. Thus  P  (  A  ∪  B  )  =  0.3  ×  0.4  0.3  ×  0.4  =  0.12     or     12  %

jlo2ni5x · Accepted Answer

So   30  %  ×  40  %  =  12  %  12  % that it&#039;ll snow two days in a row

The forecast calls for a 30% chance of snow today and a 40% chance of snow tomorrow. what are the chances it will rain two days in a row?

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