1.At the Fidelity Credit Union, a mean of3.5customers arrive hourly at the drive-through window. What is the probability that, in any hour, less than 2customers will arrive? Round your answer to four decimal places.

2.What is the probability that a randomly selected person will have a birthday in January? Assume that this person was not born in a leap year. Express your answer as a simplified fraction or a decimal rounded to four decimal places.

3. Customer account "numbers" for a certain company consist of2 letters followed by4 numbers. Step 1 of 2: How many different account numbers are possible if repetitions of letters and digits are allowed?

Step 2 of 2:How many different account numbers are possible if repetitions of letters and digits are not allowed?