'Boxplots' diaporamas de présentation

Doing Quantitative Research 26E02900, 6 ECTS Cr.

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Warm-up 7.2 Generating Sampling Distributions

Warm-up 7.2 Generating Sampling Distributions. Answers to Warm-up. X is close to the mean and so will have a z-score close to 0. Boxplots , if they show an isolated point, will show only outliers. X and the two clusters are clearly visible in a stemplot of these data.

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Boxplots

Boxplots. Why use boxplots?. ease of construction convenient handling of outliers construction is not subjective (like histograms) Used with medium or large size data sets (n > 10) useful for comparative displays. Disadvantage of boxplots. does not retain the individual observations

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Chapter 5: Boxplots

CHS Statistics. Chapter 5: Boxplots. Objective: To find the five-number summaries of data and create and analyze boxplots. The Five-Number Summary. The five-number summary of a distribution reports its median, quartiles, and extremes (maximum and minimum).

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Chapter 5

Chapter 5. Understanding and Comparing Distributions. 30 min. The Big Picture. We can answer much more interesting questions about variables when we compare distributions for different groups. Here is a histogram of the Average Wind Speed for every day in 1989 .

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