Suppose you have a loaded coin that when flipped is likely to land on heads about 20% of the time and on tails 80% of the time. If you flip this coin three times what is the expected value for tails?...

Suppose you have a loaded coin that when flipped is likely to land on heads about 20% of the time and on tails 80% of the time.  If you flip this coin three times what is the expected value for tails?  What is the variance and standard deviation?  What is the probability of you getting two tails?