The answer to the question is C
The probability of senior citizens suffer from sleep disorders is

The probability of senior citizens suffer from anxiety is,0.09.

The probability of seniors suffer from both sleep disorders and anxiety is,

a. The probability that a senior citizen suffers from anxiety, given that he or she has a
sleep disorder.


<span>D. She wrote articles and gave speeches about hate crimes against blacks in the south.</span>
#1.
Here what you do is cross multiply.

#2.
Same as #1, just cross multiply.

You get the gist?
1/12
1/4 divided by 3 equals 1/12
Hope this helped! :)