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10 questions from this quiz
xˉ=∑xin\bar{x} = \frac{\sum x_i}{n}xˉ=n∑xi
Average the two middle values
Maximum value - Minimum value
It focuses on middle 50% & ignores extremes
Standard deviation is the square root
Min, Q1Q_1Q1, Median, Q3Q_3Q3, Max
Middle 50% of data from Q1Q_1Q1 to Q3Q_3Q3
95%
Mean is greater than median
Mean < median, tail extends left
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