1. In a normal distribution, "traveling" three standard deviations away from the mean, both higher and lower, would mean you have calculated what confidence interval?

Group of answer choices

95%

68%

90%

99%

2. A representative sample is meant to "match" the proportion of the sample who possess a particular characteristic or characteristics to the proportion of the population who have that same characteristic or characteristics.

Group of answer choices

True

False

3. A scatterplot can be used to depict a relationship between which of the following combinations of variables?

Group of answer choices

A discrete X and a categorical Y

A categorical X and a continuous Y

A continuous X and an ordinal Y

A continuous X and a continuous Y

4. A population is the same thing as a sampling frame.

Group of answer choices

True

False