what is the probability of accurately forecasting wheather exactly on 4 of the 5 consecutide days given that the average accuracy race is 80%?

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what is the probability of accurately forecasting wheather exactly on 4 of the 5 consecutide days given that the average accuracy race is 80%?
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what is the probability of accurately forecasting wheather exactly on 4 of the 5 consecutide days given that the average accuracy race is 80%?
what is the probability of accurately forecasting wheather exactly on 4 of the 5 consecutide days given that the average accuracy race is 80%?

what is the probability of accurately forecasting wheather exactly on 4 of the 5 consecutide days given that the average accuracy race is 80%?
我先给你大概翻译一下:如果天气预报的平均准确率是80%,那么在连续五天中有四天都准确的可能性是多少?
80%*80%880%880%820%=0.08192
1L算错了~没乘0.

5*0.8*0.8*08*0.8*0.2=

c(5,1)0.8*0.8*0.8*0.8*0.2=0.4096