Question

In: Statistics and Probability

Identify which of the following statements is true and which is false. 1) _________   For a...

Identify which of the following statements is true and which is false.

1) _________   For a set of numerical data, if the mean is larger than the median, this is evidence of right-skew.

2) _________   Negative values of the standard deviation indicate that the set of values is even less dispersed than would be expected by chance alone.

3) _________   For a set of numerical data, if the mean and the median are of equal value, this is evidence of symmetry in the data.

Solutions

Expert Solution

1.) True.

For right skewness, median <mode < mean

2.) False.

Variance and standard deviation can't take negative values. The minimum value which they can take is 0

3.) True.

For symmetrical data, mean= median= mode.

orchestra answered 2 years ago
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