0
Still curious? Ask our experts.
Chat with our AI personalities
Beau
Ezra
RafaAdd your answer:
Earn +20 pts
When is the mean used as a measure of central tendency?
When there aren't extreme values (outliers)
What data that does not fit well with the rest of a data set.?
They are called extreme values or outliers.
What are the disadvantages of least square method?
High sensetivity to outliers (i.e. Extreme observation)
Why is the interquartile range a more appropriate measure for spread than the range?
the interquartile range is not sensitive to outliers.
What is the significance of variance in statistics?
Variance is a measure of "relative to the mean, how far away does the other data fall" - it is a measure of dispersion. A high variance would indicate that your data is very much spread out over a large area (random), whereas a low variance would indicate that all your data is very similar.Standard deviation (the square root of the variance) is a measure of "on average, how far away does the data fall from the mean". It can be interpreted in a similar way to the variance, but since it is square rooted, it is less susceptible to outliers.
