Unit 1: Exploring One-Variable Data

/ Unit 1: Exploring One-Variable Data

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Question Difficulty:

Question	Difficulty	Students Solved
Probability from a Frequency Table	easy	33
Z-Score in a Normal Distribution	medium	21
Interpreting Proportions in a Histogram	medium	13
Relative Frequency Table Purpose	-	17
Interpreting a Back-to-Back Stemplot Summary	medium	11
Defining Statistical Spread	-	12
Rounding Error In Relative Frequencies	medium	8
Relative Frequency to Decimal Conversion	-	11
Empirical Rule for a Normal Distribution	easy	9
Lower Outlier Boundary Calculation	-	11
Effects of Linear Transformations on Summary Statistics	medium	6
Variable Types and the Mean	-	7
Analyzing a Frequency Distribution Table	easy	5
Effects Of Skewness On Measures Of Center	-	6
Effect of a Constant on Variance	easy	5
Standard Deviation and Data Transformation	-	5
Characteristics of a Skewed Distribution	easy	6
Comparing Z-Scores Across Distributions	-	4
Effect of Scaling on the Mean	easy	5
Measures of Central Tendency	-	5

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