4 votes 4 votes A coin is tossed 10 times Find the probablity of obtaining head at least once Quantitative Aptitude probability + – Uma Maheswari asked Dec 24, 2017 Uma Maheswari 286 points 1.1k views answer comment Share See all 0 reply Please log in or register to add a comment.
Best answer 2 votes 2 votes Probability of obtaining head at least once = 1 - ( Probability of obtaining tail all 10 times) = 1 - (1/2)^10 = 1023/1024 Therefore , probability is 1023/1024 sravani inturi answered Dec 24, 2017 selected Jan 31, 2018 by Sukanya Das sravani inturi 190 points comment Share See all 0 reply Please log in or register to add a comment.
2 votes 2 votes Sample space size $= 1024$ No. of favourable cases $= 1024-1=1023$ Probability $= \frac{1023}{1024} =99.90 \%$ saxena0612 answered Dec 24, 2017 saxena0612 950 points comment Share See all 0 reply Please log in or register to add a comment.
0 votes 0 votes 1023/1024 shaloo answered Apr 25, 2018 shaloo 46 points comment Share See all 0 reply Please log in or register to add a comment.