Experiment-phone numbers

Questions:

1) Do all digits occur an equal amount of time?

2) What digit(s) occurred most often?

3) If you surveyed another 100 phone numbers, would you expect the same results?

4) Would you say the digits are equally likely to occur? Explain.

5) Estimate the probability of a phone number ending on 5?

P(5) = ________

6) If we had tested the first digit instead of the last, would you expect similar results?