Let , A be the event that the California adults is a college graduates and B be the event that the California adults are regular internet users.
Given : P(A)=27%=0.27
P(B)=31%=0.31
Now ,
a)
Therefore , the probability that the randomly choosen internet user is a college graduate is 0.21
b) By using definition of conditional probability ,
Therefore , the probability that a california adult is an internet user , given that he or she is a college graduate is 0.78
It is estimated that 27% of all Callfornia adults are college graduates and that 31% of...
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