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3 Exakte Antworten 27 Text Antworten 14 Multiple Choice Antworten
Fenster schliessen

If data are spread out, the range, variance and standard deviation will decrease (T/F)?

F
Fenster schliessen

If the data values are all the same, the range, vairance and standard deviation will be zero?(T/F)

T
Fenster schliessen

All the range, variance, and standard deviation cannot be negative? (T/F)

T
Fenster schliessen

Which of the following statistics is not a measure of central tendency?

Mean

Median

Mode

Variance

Fenster schliessen

Which of the following statements about the median is NOT true?

It is less affected by extreme values than the mean

It is a measure of central tendency

It is equal to variance

it is the same to mode in bell-shaped distribution

Fenster schliessen

In a perfectly shaped symmetrical distribution

the range equals the variance

the range equals the mean

the mean equals the median

the variance equals the standard deviation

Fenster schliessen

Which one is a categorical variable?

Temperature

Salary

Shoe brand

Weight

Fenster schliessen

Does a high correlation imply there is a 
causality between two variables? (T/F)

True

False