Q and A for final module

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I’m studying for my Statistics class and don’t understand how to answer this. Can you help me study?

Question 11 pts

SQL is an acronym for _____________.

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Flag this QuestionQuestion 21 pts

For a prediction task with 7 features, what would be a desirable sample size?

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Flag this QuestionQuestion 31 pts

The response (outcome) variable is whether the customer defaulted on their debt. The
predictor is the average balance and gender (gender = 1 if male and 0 if female). The following
R output is the fitted logistic regression model.

Coefficients:
Estimate Std. Error z value Pr(>|z|)
(Intercept) -10.87 0.5170250 -21.03 <2e-16 ***
balance 0.001744 0.0002494 6.99 <2e-16 *** genderM -0.631 0.1153 -5.47 <2e-16 ***

From the output, will a male customer with the average debt of $4000 default?

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Flag this QuestionQuestion 41 pts

Classification and Regression Trees (CART) is __________.

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Flag this QuestionQuestion 51 pts

k-nearest neighbor (kNN) is ______________.

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Flag this QuestionQuestion 61 pts

Consider the dataset
1.3, 1.5, 2.6, 2.8, 3.3, 4.0, 8.9.
Using a rule of +/-3, it 8.9 an outlier? The mean and standard deviation are 3.5 and 2.57, respectively.

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Flag this QuestionQuestion 71 pts

Which one of the following is NOT a data mining algorithm after completion of sampling, handling missing values, and dealing with outliers?

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Flag this QuestionQuestion 81 pts

Consider the following dataset. Compute the distance between the 1st and 3rd sample.

sample acidity density alcohol pH
1 0 0.9968 9.8 3.2
2 0.04 0.997 9.8 3.26
3 0.56 0.998 9.8 3.16
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Flag this QuestionQuestion 91 pts

The response (outcome) variable is whether the customer defaulted on their debt. The
predictor is the average balance. The following R output is the fitted logistic regression model.

Coefficients:
Estimate Std. Error z value Pr(>|z|)
(Intercept) -10.87 0.5170250 -10.08 <2e-16 ***
balance 0.001744 0.0002494 11.12 <2e-16 ***

From the output, will a customer with the average debt of $8000 default?

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Flag this QuestionQuestion 101 pts

Data mining is ____________.

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