If a fair coin is tossed 4 times, what is the probability, to the nearest thousandth, of getting exactly 1 heads?
=0.250
Step 1 :P(exactly 1 head)=(41)⋅(0.5)1⋅(0.5)3
Step 2 :=4⋅0.5⋅0.125
Step 3 :=0.250