最新的SASInstitute A00-485免費考試真題

問題1

Refer to the exhibits:
Exhibit 1:

Exhibit 2:

An analyst has created a cluster model based on the settings in Exhibit 1 and chose to derive a cluster ID variable.
Why are there 5 cluster IDs in Exhibit 2 based on these settings?

A. Parallel Coordinates Visible Roles setting is 5.

B. Variable Standardization has been chosen.

C. Cluster Matrix Visible Roles setting is 5.

D. There are observations with missing values.

正確答案: D

問題2

When assigning variable roles for a decision tree, which role typically represents the target variable you want to predict?

A. Predictor

B. Output

C. Splitter

D. Input

正確答案: B

問題3

When investigating leaf nodes in a decision tree, what does it reveal about the data?

A. The decision rules leading to each leaf node

B. The feature values associated with each leaf node

C. The statistical significance of each leaf node

D. The class labels assigned to each leaf node

正確答案: A,B,D

問題4

How is a multinomial response variable used in SAS Visual Statistics when building a logistic regression model?

A. It is used as an event variable.

B. It is used as a predictor variable.

C. It is not used in logistic regression modeling.

D. It is used to define the outcome categories.

正確答案: D

問題5

You want to fit a Poisson regression and use the log link function to predict skin cancer from weather, pollution, and demographic variables. Each row in the data is a geographic region.
The response, Melanoma, is stored as the number of melanoma skin cancer cases in each region.
Because some regions have many people and some have few, your data also includes a variable with the region population.
What is the best way to include population in this model?

A. Add Population as an offset.

B. Add the log of Population as an effect.

C. Add the log of Population as an offset.

D. Add Population as an effect.

正確答案: C

問題6

When specifying Cluster Roles for Cluster Analysis in SAS Visual Statistics, which condition is correct?

A. Interaction items are allowed.

B. Category items are not allowed.

C. A target variable is required.

D. At least two variables are required.

正確答案: D

問題7

When examining the summary table for group-by processing, what information can you find?

A. The number of observations in each group

B. The mean value of the target variable for each group

C. The distribution of the group-by variable

D. The standard deviation of the target variable for each group

正確答案: A,B,D

問題8

What is the primary purpose of assigning variable roles in linear regression?

A. To determine the order in which variables are entered into the model

B. To determine the level of significance for each variable

C. To indicate which variables are predictors and which are responses

D. To specify which variables are categorical and which are continuous

正確答案: D

問題9

What does the Variable Importance feature help with when choosing the best fitting group-by model?

A. Understanding the distribution of the target variable

B. Assessing the significance of each predictor

C. Identifying the most influential predictors

D. Evaluating the multicollinearity among predictors

正確答案: C

問題10

In a generalized linear model, what is the role of the link function in transforming the linear predictor?

A. It maps the linear predictor to the range of the response variable.

B. It determines the distribution of the response variable.

C. It scales the predictor variables.

D. It ensures that the linear predictor is always positive.

正確答案: A

問題11

How can you assign a group-by variable to a predictive model in SAS Visual Analytics?

A. Specify the group-by variable in the data source properties

B. Drag and drop the group-by variable into the predictor field of the model

C. Select the group-by variable from a dropdown menu in the model settings

D. Click on the group-by variable and choose "Assign as predictor" from the context menu

正確答案: B,C

問題12

What are some properties that can be defined in a generalized linear regression model?

A. Coefficients and p-values

B. Distribution and link function

C. Residuals and intercept

D. Number of predictors

正確答案: B

問題13

What properties can be assigned when comparing models in SAS Visual Statistics?

A. The color scheme for visualization

B. The variables to include in the model comparison

C. The number of observations in the dataset

D. The learning rate for gradient boosting models

正確答案: B

問題14

In logistic regression modeling, how is the probability of an event typically estimated?

A. By applying the link function to the linear predictor

B. By fitting a linear regression model to the data

C. By assigning roles to variables

D. By calculating the mean of the predictor variables

正確答案: A

問題15

What is the primary purpose of reviewing the residual plot in linear regression analysis?

A. To assess the linearity assumption and identify potential issues

B. To detect outliers in the predictor variables

C. To calculate the coefficient of determination (R-squared)

D. To determine the p-value associated with the response variable

正確答案: A

最新的SASInstitute Modeling Using SAS Visual Statistics - A00-485免費考試真題

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