Posted by CM on .
EC= eye color
RFL= ring finger longer
RFNL= ring finger not longer
EC RFL RFNL Total
Blue 20 17 37
Brown 27 22 49
Green 15 7 22
Other 12 5 17
Total 74 51 125
D) What is the probability that the student selected has green eyes and a ring finger longer than his/her index finger?
E)What is the probability that the student selected has green eyes or a ring finger longer than his/her index finger?
Please help and explain/show how to do these.

Stats 
PsyDAG,
D. 7/125 (specific category/grand total)
E. Green eyes = 22/125 (category total/grand total)
RFL = 74/125
For "eitheror" probability, you add the individual probabilities.
I hope this helps. Thanks for asking.