Ten tickets are numbered 1,2,3….,10. Six tickets are selected at random one at a time with replacement. What is the probability that the largest number appearing on the selected ticket is 7 ?

a)   (7^6-1)/10^6

b)   (7^6-6^6)/10^6

c)   6^6/10^6

d)   None

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adminPermutation & Combination
Ten tickets are numbered 1,2,3....,10. Six tickets are selected at random one at a time with replacement. What is the probability that the largest number appearing on the selected ticket is 7 ? a)   b)   c)   d)   None