Question 31991
Your instructor wants you to find the emperical probability of getting HH, etc.
You have to actually do the experiment.
Take two different coins and throw them.  When they land record the pattern 
you get: i.e. HH, or HT, or TH, or TT
Do this 40 times.
Count the number of HH patterns, e.g. let's say you have 5.
Then p(HH)=5/40 = 1/8
Do the same for HT, TH, and TT
Cheers,
stan H.