Unit 2: Exploring Two-Variable Data

/ Unit 2: Exploring Two-Variable Data

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You’ll build on what you’ve learned by representing two-variable data, comparing distributions, describing relationships between variables, and using models to make predictions.

Question Difficulty:

Question	Difficulty	Students Solved
Defining an Influential Point	easy	15
Displaying Bivariate Quantitative Data	easy	10
Regression Slope Formula and Properties	medium	9
Linear Regression Prediction	easy	6
Ratio of Means for Two-Variable Data	easy	5
Defining High-Leverage Points	easy	6
Regression Outlier Characteristics	easy	7
Residual Plots and Data Transformation	easy	7
Contingency Table Definition	easy	3
Residual Plots And Non-Linear Relationships	easy	6
Properties of the Coefficient of Determination	hard	4
Association in Mosaic Plots	easy	6
Slope of the Regression of X on Y	medium	2
Linear Regression Notation	easy	4
Sample Correlation Coefficient Formula	easy	6
Interpreting a Scatterplot with No Association	easy	2
Two-Way Table Analysis Steps	easy	5
Consequences of Reversing Scatterplot Axes	medium	3
Linear Regression Slope Interpretation	easy	2
High-Leverage Points in Regression	easy	2

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Unit Leaderboard

Rank	User	Correct Count	Attempt Count	Time	Score
#1	jglmoa1014	57	90	0m 00s	5,370
#2	thanooj_thutaram	55	75	0m 00s	5,300
#3	jueonk10	52	58	0m 00s	5,140
#4	satyaachanti1710	40	54	0m 00s	3,860
#5	cynthiayihan34	17	18	0m 00s	1,690
#6	h62018675	17	19	0m 00s	1,680
#7	nazikersain	16	17	0m 05s	1,585
#8	reinaokada1	23	30	13m 44s	1,406
#9	krlampe7	14	20	0m 00s	1,340
#10	aadharshmeenak	13	15	0m 00s	1,280

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