Statistics Quiz

The population is

• A collection of observations.

• A collection of methods for planning studies and experiments.

• The complete collection of all elements.

• A sub collection of members drawn from a larger group.

A self-selected study is a source of bias in which factor of statistical analysis?

• Source of the data.

• Context of the data.

• Mathematical calculations.

• Sampling method.

Which is an example of quantitative data?

• Weights of high school students.

• Genders of actors and actresses.

• Colors of the rainbow.

• Consumer ratings of a particular automobile (below average, average, and above average).

Which is not an example of continuous data?

• Temperature on a thermometer.

• Number of students in an algebra class.

• Mean weight of 100 flour sacks.

• Amount of water pumped from a pond per day.

Questions on a survey are scored with integers 1 thru 5 with 1 representing Strongly Disagree and 5 Strongly Agree. This is an example of what kind of measurement?

• Nominal.

• Ratio.

• Ordinal.

• Interval.

In a large lecture room class of 300 students, a sample of 10 was taken to determine the male/female make up of the class. Which misuse of statistics does this represent?

• Percentages.

• Precise numbers.

• Missing data.

• Small samples.

At a security checkpoint to a government facility, every 10th individual was more thoroughly searched than the others. What type of sampling is this?

• Systemic.

• Convenience.

• Stratified.

• Cluster.

Casualty data from the great flu epidemic of 1918 were collected for a study. This represents what type of study?

• Cross-sectional.

• Retrospective.

• Prospective.

• Qualitative.

A sample value that lies very far away from the majority of the other sample values is

• the center.

• a distribution.

• an outlier.

• a variance.

A table that lists data values along with their counts is

• an ogive.

• a frequency distribution.

• a cumulative table.

• a histogram.