Question

Incoming students at a school are assigned six-digit ID numbers. The first digit is chosen at random from the digits 0 through 3. The remaining five digits are chosen at random from the digits 0 through 9. What is the probability that an incoming student is assigned an ID number that begins with the digits 012? Enter your answer in the box.

Answer 1

For the sequence of events, the probability of being assigned 012 is:

P(012)=(1/4)(1/10)(1/10)

P(012)=1/400   (0.25%)

Answer 2

P(012) = (1/4)(1/10)(1/10)

P(012) = 1/400   .... 0.25%