Ex9.1.1

@

1. A subset of a population selected to represent the population is

a subset
a sample
a small population
None of the above answers is correct

@

2. A population consists of 500 elements. We want to draw a simple random sample

of 50 elements from this population. On the first selection, the probability of an element

being selected is

0.1
0.01
0.001
0.002
None of the above answers is correct

@

3. A population consists of 8 items. The number of different simple random samples

of size 3 that can be selected from this population is

24
56
512
128
None of the above answers is correct

@

4. A population characteristic, such as a population mean, is called
a statistic
a parameter
a sample
the mean deviation
None of the above answers is correct

@

5. A simple random sample of size n from an infinite population of size N is

to be selected. Each possible sample should have

the same probability of being selected
a probability of 1/n of being selected
a probability of 1/N of being selected
a probability of n/N of being selected
None of the above answers is correct