What is the meaning of central tendency and dispersion How d

What is the meaning of “central tendency” and dispersion?

How does change bin sizes potentially change a histogram

Be able to estimate the mean, median, mode, and standard deviation of a distribution by looking at a histogram and vice versa. •

If you are given a cumulative frequency histogram or quantile plot, be able to make a rough translation of it into a histogram and vice versa •

Be able to interpret a quantile plot. •

Be able to identify bimodal and , positively-, and negatively- skewed histograms •

Why would you use the median rather than the mean in some distributions, and vice versa

Solution

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What is the meaning of “central tendency” and dispersion?

ØMeasures of central tendency are statistics that summarize a distribution of scores by reporting the most typical or representative value of the distribution.

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ØMeasures of variability are statistics that indicate the amount of variety or heterogeneity in a distribution of scores.