The CEO of a company wants to determine if taking the employees to a company retreat would boost their morale. He decides to use a random number table to survey a simple random sample of 50 of the 250 employees. How many digits should he use?

Label the 250 employees with numbers from 001 to 250. Since each label has three digits, the random number table should be read in groups of three digits. This allows the CEO to select employee numbers in the range 001–250, skipping numbers outside that range and repeats. The correct choice is C, 3 digits.

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