Question 146

If 3 coins are tossed, then the probability of getting at least 2 heads is

Solution

Share

when the 3 cion are tossed the total number of cases are = $$2^3$$ = 8 

and at least two heads are there in the following = HHT, HTH, THH, HHH = 4 

then the probility of getting at least two heads  = number of favourable cases \ total number of cases 

then the probility of getting at least two heads = 4\8 = 1\2 Answer 

View More Questions From Quant

Create a FREE account and get:

  • Download Maths Shortcuts PDF
  • Get 300+ previous papers with solutions PDF
  • 500+ Online Tests for Free