You need to select a simple random sample of two from six friends who will participate in a survey. Assume the friends are numbered 1, 2, 3, 4, 5 and 6.

Use the following line from a random number table to select your sample. What two friends are chosen? Start from the left.

975578 081499 435211 067551

• A. Friend 5 and friend 1
• B. Friend 1 and friend 6
• C. Friend 1 and friend 2
• D. Friend 5 and friend 6

*Question 2

Assume your class has 30 students and you want a random sample of 10 of them. A student suggests asking each student to flip a coin, and if the coin comes up heads, then he or she is in your sample. Explain why this isn't a good method.

• A. This method is not good because it is unlikely to result in a sample size of 10.
• B. This method is not good because it is not random.
• C. This method is not good because it will likely result in measurement bias.
• D. This method is not good because it will result in sampling bias.