Use the given table which lists six possible assignments of

Use the given table, which lists six possible assignments of probabilities for tossing a coin twice, to determine which of the assignments of probabilities should be used if the coin is known to always come up tails? Assignments should be used if the coin is known to always come up tails.

Solution

Since it is known that coin always comes up tails so we should choose the assignment that has highest frequency for the outcome TT. Assignment B has the highest probability of otucome TT. So assignment B should be used,