What is the meaning of “central tendency” and dispersion? How does change bin si

Question

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

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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.

Ø

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

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