Question: Random 7s. The digits (0 through 9) in Appendix Table A occur randomly throughout the table. Thus, a value of 7 has a 0.1 chance

Random 7s. The digits (0 through 9) in Appendix Table A occur randomly throughout the table. Thus, a value of 7 has a 0.1 chance of occurring in any single slot anywhere in the table.

(a) Each line in Appendix Table A has 50 slots. On average, how many 7s do we expect to find in a given line?

(b) What is the probability of finding exactly five 7s in a given line?

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