Question

Erica gets a new credit card. What is the probability that the last four digits are all 5s?

Answer 1

5/20 braces you do 5•4=20 and it's out of 5 so 5/20

Answer 2

Your answer is 1/10,000
There are 10 possible chances for each digit. The chances of getting a 5 is 1/10 for each. 1/10 four times (1/10x1/10x1/10x1/10) = 1/10,000

I hope this Helps!