A fair coin is tossed 25 times. What is the probability that at most 24 heads occur?
a) 0.00000003
b) 0.99999997
c) 0.00000077
d) 0.00000075
e) 0.99999923
A fair coin is tossed 26 times. What is the probability that at least 3 heads occur?
a) 0.999994770
b) 0.999994755
c) 0.999956012
d) 0.000000015
e) 0.000038743