A finite population consists of four elements:6,1,4,2.

(a)

How many different samples of sizen= 2 can be selected from this population if you sample without replacement? (Sampling is said to bewithout replacementif an element cannot be selected twice for the same sample.)

samples

(b)

List the possible samples of sizen= 2. (Enter your samples as a comma-separated list. Use parentheses around each sample. For each sample, enter the elements as a comma-separated list from smallest to largest.)

(c)

Compute the sample mean for each of the samples given in part (b). (Enter your answers as a comma-separated list.)

(d) If all four population values are equally likely, calculate the value of the population mean. (Enter your answer to two decimal places.)

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