Ungraded quiz Unit 5

Show me your fingers Do not shout out the answer, or your classmates will follow what you said. Use your fingers One finger (the right finger) = A Two fingers = B Three fingers = C Four fingers = D No finger = I don’t know. I didn’t study

When there are too many variables, what can be done? Use principal component analysis to combine variables into a few composite scores Use stepwise regression to toss out unwanted variables Use predictor screening to toss out unwanted variables All of the above

Coplot can be implemented in _____ JMP Tableau Both

Which of the following statements is true? In Tableau Dimensions are continuous variables and Measures are ordinal. Dimensions are categorical and Measures are ordinal. Dimensions are categorical and Measures are continuous. Both Dimensions and Measures can accept any data type.

He should use Mahalanobis distance or/and normal contour ellipsoids. Dr. April Fu used a boxplot and a 95% density eclipse to detect and remove outliers. And then he ran a multivariate analysis with 4 variables. Which of the following statements is true? Using a box plot is inappropriate because this method is for detecting one-dimensional outlier. Using a density eclipse is inappropriate because this method is for detecting bivariate outlier. He should use Mahalanobis distance or/and normal contour ellipsoids. All of the above

Which of the following graphs can be used for clustering of a 3-dimensional data set? Scatterplot matrix Coplot Terney plot All of the above

I want to include a graph into a poster presentation I want to include a graph into a poster presentation. The graph size will be 20 X 30. Which graphical format should I use? JPEG PNG GIF Vector-based image

I want to find out what is the optimal combination of various conditions to obtain the desirable outcome. Which visualization method should I use? Linking and brushing Color map Prediction profiler Mesh surface

I used Mathematica to create a movie showing 4 dimensions I used Mathematica to create a movie showing 4 dimensions. When I played the movie, the change from one frame to the next is almost unnoticeable. What is happening? You didn’t pay the software license Your computer microprocessor is not powerful enough to display the animation. There is no 4-way interaction.