Summary: Emba: Data And Decisions
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1 ONEVARIABLE STATISTICS
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1.1 Chapter 1: Measuring the Center
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True or False. Outliers have values that are significantly higher or lower than the other numbers in a data set.
True 
1.1.1 Measuring Central Tendency: Mean, Median, and Mode
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True or False. Median is the "middle" of the set. If there is an even number, get the median of both the middle numbers.
True 
What is bimodal and multimodal?
Bimodal is 2 modes, and multimodal is 3 modes or more, in a set. 
True or False. If outliers present Median better represents the center of the data than the mean.
True 
1.1.2 Standard Deviation
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True or false. Standard deviation can be considered before and after the mean value i.e. Mean of 50u and standard deviation of 20u, it is between 30 and 70u.
True 
True or false. The standard deviation gives a rough idea of where most of the data in a set falls in relation to the mean.
True 
1.1.3 Five Number Summary
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True or false. The five number summary not only describes the center of a data set, but also how it spreads out from the median.
True 
What is the 1st step in computing the fivenumber summary?
Arrange the data in numerical order 
True or False. We need to ignore the median of the entire data set when identifying medians of the lower and upper halves.
True 
1.1.4 Boxplots
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True or False. Boxplots make comparisons between fivenumber summaries much easier.
True
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