Satisfaction survey. An Internet provider wants to contact customers in a specific telephone exchange area to see how satisfied they are with the improved download speed the company has recently provided. All numbers are in the exchange of 62; so, there are 10,000 possible numbers ranging from 62-0000 to 62-9999. If they select the numbers with equal probability,

a) what distribution would they use to model the selection?

b) what is the probability the number selected will be an even number?

c) what is the probability the number selected will end in 000?