the mass distribution of a coin is so that the chance of getting a head s only 40% .The coin is tossed a 100 times what is the chance -to get more than (inclusive ) 50 heads ? -to get more than (exclusive) 50 tails? to get more than (exclusive) 60 tails and more than (exclusive ) 20 heads ?
if you do the experiment 3times,what is the chance of getting every time less than (inclusive ) 30 heads ?