Question 888331: What is the method for calculating this?
Suppose we did collect data by asking professors how old they were and measuring their blood pressure. The table below reflects the data collected based on these two variables:
Low Blood Pressure High Blood Pressure Total
50 and Under 64 51 115
Over 50 31 73 104
Total 95 124 219
Let us use the following notation for events: U = 50 and under, O = over 50, L = low blood pressure and H = high blood pressure.
a.Compute P(L), P(L|U) and P(L|O).
b.Are the events L = low blood pressure and U = 50 and under independent? Why or why not?
c.Compute P(L and U) and P(L and O).
d.Compute P(H) and P(H|U).
e.Are the events H = high blood pressure and O = over 50 independent? Why or why not?
f.Compute P(L or U).
Answer by oscargut(2103)   (Show Source):
You can put this solution on YOUR website! Hi,
Since this question has several parts iwill do the first one here:
a)
P(L)= 95/219
P(L/U)= 64/115
P(L/O)= 50/104
If you need more help you can contact me at:
mthman@gmail.com
Thanks
|
|
|
