Mathematics, 25.06.2021 21:50 Mathcat444
In a game, there are 12 identical balls of which seven are red and five are green.
Five red balls and two green balls have number β2β written on them. The rest of the
red balls have number β1β written on them, and the rest of the green balls have the
number β3β written on them. A random sample of three balls is selected without
replacement. Let denotes the event that all the balls selected are red and
denotes that the sum of numbers of the three balls is equal to 6. Calculate:
(i) P(A) ,
(ii) P(B),
(iii)P ( Aβ© B),
(iv)P(A|B).β
Answers: 1
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In a game, there are 12 identical balls of which seven are red and five are green.
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