practice_problems/problems/unit-01/I-law-of-total-probability-and-Bayes-rule/2

[giscus[bot]]

practice_problems/problems/unit-01/I-law-of-total-probability-and-Bayes-rule/2

https://mids-w203.github.io/practice_problems/problems/unit-01/I-law-of-total-probability-and-Bayes-rule/2.html

[edwin-fleurant-UCB]

(a) What is the probability that the coin chosen is the two-headed coin?

For this question you asked what is the probability of the two-headed coin being chosen, since it has a equal probability from the rest wouldn't the answer just be 1/3.

In my opinion I think the questions should be rephrase as "What is the probability that the coin chosen and flipped is the two-headed coin and given an outcome of heads?", to derive the answer provided.