Question 285643: A medical research project examined the relationship between a subject’s weight and recovery time from a surgical procedure, as shown in the table below.
Underweight Normal weight Overweight
Less than 3 days 6 15 3
3 to 7 days 30 95 20
Over 7 days 14 40 27
a. What is the probability a patient will recover in fewer than 3 days?
b. Given that recovery takes over 7 days, what is the probability the patient is overweight?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A medical research project examined the relationship between a subject’s weight and recovery time from a surgical procedure, as shown in the table below.
Underweight Normal weight Overweight Totals
Less than 3 days 6 15 3 24
3 to 7 days 30 95 20 145
Over 7 days 14 40 27 81
Totals 50 150 50 250
============================================================================
a. What is the probability a patient will recover in fewer than 3 days? :::::: 24/250
--------------------------
b. Given that recovery takes over 7 days, what is the probability the patient is overweight?::::: 27/81 = 1/3
============================================
Cheers,
Stan H
============================================
|
|
|
