A doctor says that a infant who predominantly turns the head to the
right will be right-handded and the one who turns the head to the left
will be left-handed. The newborn baby girl turned her head to the left.
Given that 90% of the population is right-handed, what is the probability
of baby being right handed if the test is 90% accurate ? What if it is
80% accurate ?
I got 0.5 for the first question and 0.6923 for the second, is this correct?