A fair coin is tossed 8 times Find the probability it comes

A fair coin is tossed 8 times. Find the probability it comes up heads exactly 6 limes. a) 7/32 b) 7/128 c) 7/64 d)7/256

Solution

No. of times we get 6 heads in tossing 8 coins = ⁸C₆=28

Total number of outcomes (possiblities) when we toss 8 coins=2⁸=256

Probability of getting 6 heads in tossing 8 coins = 28/256

=7/64

so, (c) is the correct answer.