Question

please help...
Three unbiased coins are tossed together. find the probability of getting at least two heads is
1/2
1/8
3/8
1​​

Answer 1

Step-by-step explanation:

Total no. of outcomes when 3 coins are tossed : TTT , HHH , THH , HTH , HHT , HTT , THT , TTH. (Total 8 )

Favourable no. of outcomes ( with atleast 2 heads) = 4 ( HHH , THH , HTH , HHT )

Probability of getting atleast 2 heads : 4/8 = 1/2.