Multiple Choice Questions

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Instructions: Right mouse click on ”Check it.” A series of assertions will appear. Read them and consider whether they are true or not. If an assertion is true in your opinion, select it using the left mouse button in the corresponding circle. If an assertion is false, simply ignore it and continue with the next one. You may change all your decisions by clicking on the corresponding circle. Once you are finished, you can have your choices checked. You have two evaluation options:

• Evaluation without an indication which answers are incorrect

Click on ”Evaluation without indicating errors”. In the white area, the number of points you obtained will appear.

• Evaluation with an indication which answers are incorrect

Click on ”Evaluation with indicating errors”. In the white area, the number of points you obtained appears. Moreover, all incorrect answers are marked in red color.

To repeat a test once more, it is necessary to clear all the circles back to the original state. Left mouse click on ”Clear all”. If you simply want to review what you have learned, you can read only the correct assertions. In this case, click by the left mouse button on ”Check all correct answers”.

GOOD LUCK!

1 Quantiles can be calculated for:

 Nominal variables Cardinal variables Ordinal variables

2 The most frequent realization of the observed characteristic is called:

 Maximum Median Mode Arithmetic average

3 Arithmetic average can be calculated for:

 Ordinal variables Nominal variables Cardinal variables

4 Which of the following location parameters are sensitive towards outliers:

 Arithmetic average Mode Median

5 Interquartile range in which lie:

 central 75\,\% observed values all 100\,\% observed values central 25\,\% observed values central 50\,\% observed values

6 Frequency table describes nicely information on

 continuous variables (non-grouped) discrete variables (nominal or ordinal, non-grouped) continuous (grouped)

7 Range of non-grouped metrically scaled variables is the difference between:

 75\% and 25\% quantiles maximum and minimum

8 Mean value

 has the same unit of measurement as the square of the variable has the same unit of measurement as the variable does not have any unit of measurement

9 Mode can be calculated for:

 Cardinal variables Ordinal variables Nominal variables

10 Arithmetic average of the absolute values of the deviations of the observations from given point $c$ is called:

 standard deviation mean absolute deviation variance

11 Which of the following mean values is used as a measure of the mean growth?

 median arithmetic average mode geometric average harmonic average

12 Median is

 50\,\% quantile 25\,\% quantile 75\,\% quantile