A large collection of one-digit random numbers should have about 50% odd and 50% even digits, because five of the ten digits are odd (1, 3, 5, 7, and 9) and five are even (0, 2, 4, 6, and 8).

a. Find the proportion of odd-numbered digits in the following lines from a random number table. Count carefully.

b. Does the proportion found in part a represent p̂ (the sample proportion) or p (the population proportion)?

c. Find the error in this estimate, the difference between p̂ and p (or p̂ - p).

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