A single die is tossed 10 times. On the first nine tosses, a four is obtained. What is the probability that a four will be obtained on the last toss, assuming that the die is fair?
a. (1/6)10
b. 1/4
c. 1/6 + 1/6 + 1/6 + 1/6 + 1/6 + 1/6 + 1/6 + 1/6 + 1/6 + 1/6
d. 1/6
e. cannot be determined
Ans: d
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