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A doctor is called to see a sick child, ...

A doctor is called to see a sick child, The doctor knows (prior to the visit) that 90% of the sick children in that neighborhood are sick with the flu, denoted by F, while 10% are sick with the measles, denoted by M. A well known symptom of measles is a rash, denoted by R. The probability of having a rash for a child sick with the measles is 0.95. However, occasionally children with the flu also develop a cash, with conditional probabil ity 0.08. Upon examination the child, the doctor finds a rash. Then what is the probability that the child has the measles?

A

`91//165`

B

`90//163`

C

`82//161`

D

`95//167`

Text Solution

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The correct Answer is:
D
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