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Mark53
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Homework Statement
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A bowl contains a large number of M&Ms. A single M&M is chosen at random, its colour is observed, and then it is returned to the bowl. A second M&M is chosen at random and its colour is observed. Let A be the event that the first M&M is yellow and B be the event that the second M&M is blue.
i. Provide a reason why you think P(B|A) = P(B) is true or not.
(d) An adult member of the Australian population is chosen at random. Let A be the event that chosen person was born in Australia and let B be the event that the person speaks more than one language.
i. Provide a reason why you think P(B|A) = P(B) is true or not.
The Attempt at a Solution
not sure if this is correct:
a) It is true as once you take it out you are putting it back in meaning that the probability is still the same
b) it is not true as the probability of selecting someone who speaks another language in the Australian population is different to selecting a person who was born in Australia and speaks another language