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Advanced Analytics Specialist Exam for Data Scientists

Last Update Dec 25, 2024
Total Questions : 66

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Advanced Analytics Specialist Exam for Data Scientists Questions and Answers

Questions 1

A hotel chain runs a simul-ation on room pricing. They want to estimate revenue, per hotel, within +/- $10 with 95% confidence (Za/2=1.96). The estimated revenue standard deviation is $5000 based on previous booking data.

What is the optimal number of simulation trials to run?

    Options:

    A.

    A 32-bit operating system was used

    B.

    The same number of trials was used

    C.

    A linear congruential generator (LCG) was used (or pseudo-random number generation

    D.

    Different seeds tor the random number generator were used.

    Questions 2

    The naive Bayer classifier is trained over 1600 movie reviews and then tested over 400 reviews.

    Here is the resulting confusion matrix:

    190 (TP) 10(FN)

    80 (FP) 120(TN)

    What are the precision, recall, and the F1-score values?

    Options:

    A.

    Precision0.95; Recall: 0704; F1-score: 0.809

    B.

    Precision 0.613, Recall: 0.95, F1-score: 0.745

    C.

    Precision 0.704, Recall: 0.95; F1-score: 0.809

    D.

    Precision 0.95; Recall: 0.613; F1-score: 0.745

    Questions 3

    In a typical multinomial logistic regression analysis involving six outcomes (class labels) and three input variables, how many model parameters will need to be estimated?

    Options:

    A.

    9

    B.

    18

    C.

    20

    D.

    24