A computer program requires the user to enter a 7-digit registration code made up of the digit 1,2,4,5,6,7,and 9.Each number has to be used,and no number can be used more than once. How many different registration codes arepossible? What is the probability that the first three digits of the code NOTbe even?Think about how the fundamental counting principle may be helpful here.

A reporter for an international newspaper is given an assignment that is randomly chosen from the following destinations worldwide: 1111 continental United States assignments, 1717 South American assignments, 2525 European Union assignments, and 2121 Asian assignments. Find the probability that he gets an assignment in South AmericaSouth America or the European Unionthe European Union. Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth.

A thief steals an ATM card and must randomly guess the correct three-digit pin code from a 10-key pad. Repetition of digits is allowed. What is the probability of a correct guess on the first try?

The access code for a garage door consists of three digits. Each digit can be any number from 1 through 7, and each digit can be repeated. Complete parts (a) through (c). (a) Find the number of possible access codes. (b) What is the probability of randomly selecting the correct access code on the first try? (c) What is the probability of not selecting the correct access code on the first try?