In: Statistics and Probability
Is ultrasound a reliable method for determining the gender of an unborn baby? There is accompanying data on 1000 births in the table below.
Ultrasound Predicted Female |
Ultrasound Predicted Male |
|
Actual Gender Is Female |
488 | 40 |
Actual Gender Is Male |
147 | 325 |
(a) Use the given information to estimate the probability that a
newborn baby is female, given that the ultrasound predicted the
baby would be female. (Give the answer to three decimal
places.)
(b) Use the given information to estimate the probability that a
newborn baby is male, given that the ultrasound predicted the baby
would be male. (Give the answer to three decimal places.)
Ultrasound Predicted Female |
Ultrasound Predicted Male |
||
Actual Gender Is Female |
488 | 40 | 528 |
Actual Gender Is Male |
147 | 325 | 472 |
635 | 365 | 1000 |
(a) Use the given information to estimate the probability that a
newborn baby is female, given that the ultrasound predicted the
baby would be female. (Give the answer to three decimal
places.)
P(Actual Gender Is Female)= P(AF)
P(Ultrasound Predicted Female)=P(UF)
P(Actual Gender Is Male)= P(AM)
P(Ultrasound Predicted Male)=P(UM)
(b) Use the given information to estimate the probability that a newborn baby is male, given that the ultrasound predicted the baby would be male. (Give the answer to three decimal places.)