# Statistic Information MCQs

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1. A frequency distribution can be shown as

? a statistic

? a histogram

? a scatter plot

? a stem and leaf plot

2. Simple statistics are

? for simpletons

? presented in stem and leaf plots

? things like correlations

? things like standard deviations

3. What would you do with a median?

? Use it do show spread.

? Use it for normally distributed data.

? Cross it against oncoming traffic

? Indicate the middle of some data.

4. The following are measures of spread:

? standard deviation

? root mean square errors

? percentile ranges

? polyunsaturated margarine

5. Which arrow indicates the standard error of the estimate?

? A

? B

? C

? D

6. Confidence intervals...

? are a new form of sprint training.

? are calculated routinely by most stats packages.

? define the likely range of a population value.

? are inferior to p values for indicating magnitude of outcomes.

7. An outcome measured on a five-point scale (not at all to always)...

? is an example of an ordinal variable.

? has a behavior problem when it comes to residuals.

? should be analyzed by logistic regression.

? can be analyzed by ANOVA.

8. Dimension reduction

? describes loss of precision.

? describes factor analysis.

? is an example of ANOVA.

? is a weight-loss program.

9. Concerning reliability:

? It impacts most on descriptive studies.

? It can be expressed as an ICC.

? It can be expressed as a CV.

? It is quantified by 2-way ANOVA.

10. Concerning validity:

? It impacts most on descriptive studies.

? It is the correlation between true and observed values.

? A valid measure must be reliable.

? A reliable measure must be valid.

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