6BSC: In Exercises, express all probabilities as fractions. Social Security Numbers - A Social Security number consists of nine digits in a particular order, and repetition of digits is allowed. If randomly selecting digits for one Social Security number, what is the probability that you get the Social Security number of the president?

Solution 6BSC: The goal is to calculate the probability that you get the Social Security number of the president. Step 1 of 1: A Social Security number consists of nine digits. Each of these nine digits can take on a value between 0 and 9. So, for each of the nine digits, we have 10 numbers to choose from. Since repetition of digits is allowed, we use the Fundamental Cou nting Rule, which says that if we hav e to make selections with replacement out of m things,...