Preparing an electronic key code without replacement

Reference no: EM1393053

A locksmith is preparing an electronic key code of 3 integers selected from the set {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} without replacement. Calculate the probability that at least one of integer in the code is 5.

a) 1/3

b) 7/10

c) 1/7

d) 2/3

e) 1/10

Reference no: EM1393053

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