Question

Sharon suspects that her brother's penny is unfair. She flips it 50 times and heads comes up 40 times. Based on these trials, the probability that a flip of this coin comes up HEADS is

Answer 1

80% of the time it will be heads, because 40/50 it's heads, and if you times both by 2 you get 80/100 = 80%

Answer 2

80% it would be heads as 40 out of 50 times it is heads so out of 100 you have to times 50 by 2 to get to 100 so you have to times 40 by 2 which is 80 so 80% of the time it is heads