Ula took part in the competition and hit the target, e) the girl in the competition hit the target knowing that it was Ula, f) Ula took part in the competition if we know that the shot was accurate.

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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(Task 5). Ola hits the target on average 2 times out of 3, and Ula hits it 3 times out of 4. The girls have agreed that the result of throwing a symmetrical dice will decide which one will take part in the competition: if the number of bczek which is a prime number falls out, then Ola will shoot, otherwise - Ula. Calculate the probability of the following events:
d) Ula took part in the competition and hit the target,
e) the girl in the competition hit the target knowing that it was Ula,
f) Ula took part in the competition if we know that the shot was accurate.

 

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