kylediedrich1343
17.02.2020 •
Mathematics
Alex and Bob play five chess games. Alex is 3 times more likely to win a game than Bob. Find the probability that: Each of them will win at least one game and Each of them will win at least two games.
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Ответ:
Step-by-step:
The first flip numbers will always add up to 1 so you do
1 - 2/7= 5/7
now it gets easy...
The second flip head will be 2/7 because it is a biased dice and the second flip tail will be 5/7
This also applies for the bottom 2: 2/7 head, 5/7 tails
hope this helped :)