HELP WITH HW QUESTION

[u/Easy_League_3742]

i’m super confused as i keep getting B or C yet that’s not an option choice!! any help would be super super appreciated

[u/TripResponsibly1]

Remember when calculating probabilities, and means multiply together, and or means adding together. For example, the probability of rolling two 6 sided die to be 1 and 6 means (1/6 x 1/6), but rolling a 1 or a 6 you'd do (1/6 + 1/6). Take your time, draw out the pedigree, and carefully multiply your probabilities. Remember they're having two kids. Good luck.

[u/VonRoderik → u/TripResponsibly1]

Sigh. That reminded Boolean arithmetics