math
posted by Tina on .
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Question text
A fair coin is tossed 6 times. What is the probability to the nearest hundredth of obtaining at least one head?
Select one:
a. .08
b. .98
c. .50
d. .02

What's the probability of zero heads? The same as 6 tails:
(1/2)^6 = 1/64
So, P(>=1 head) = 1  1/64 = 63/64
Looks like (B)