Probability in Engineering
Lecture # 3
Frequency Distribution of
Qualitative Data
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Sample Mean (Example 1.14)
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Sample Median (Example 1.15)
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Mean Vs. Median
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Why measure of variability?
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Sample Variance and Standard
Deviation
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Boxplot
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Boxplot with Outliers
Any observation which is father than 1.5 fs from the closest
fourth is an outlier. An outlier is extreme if it is more than 3fs
from the nearest fourth, and is mild otherwise
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Boxplot for comparison
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