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C1000-059 Exam Dumps - IBM Data and AI: Data and AI Questions and Answers

Question # 4

What is the technique called for vectorizing text data which matches the words in different sentences to determine if the sentences are similar?

Options:

A.

Cup of Vectors

B.

Box of Lexicon

C.

Sack of Sentences

D.

Bag of Words

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Question # 5

When should median value be used instead of mean value for imputing missing data?

Options:

A.

for skewed data

B.

for real numbers

C.

for normally distributed data

D.

for large data sets

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Question # 6

What is the name of the design thinking work product that contains a summary description of a particular person or role?

Options:

A.

persona

B.

snapshot

C.

My Sticky Note

D.

user summary report

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Question # 7

Which statement is true for naive Bayes?

Options:

A.

Naive Bayes can be used for regression.

B.

Let p(C1 | x) and p(C2 | x) be the conditional probabilities that x belongs to class C1 and C2 respectively, in a binary model, log p (C1 | x) – log p(C2 | x) > 0 results in predicting that x belongs to C2.

C.

Naive Bayes is a conditional probability model.

D.

Naive Bayes doesn't require any assumptions about the distribution of values associated with each class.

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Question # 8

What is the best step by step order for machine learning pipeline?

Options:

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Question # 9

Which two properties hold true for standardized variables (also known as z-score normalization)? (Choose two.)

Options:

A.

standard deviation = 0.5

B.

expected value = 0

C.

expected value = 0.5

D.

expected value = 1

E.

standard deviation = 1

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Question # 10

What is used to scale large positive values during data cleaning?

Options:

A.

division by random numbers

B.

square

C.

logarithm

D.

subtract median

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Question # 11

What is the first step in creating a custom model in Watson Visual Recognition service?

Options:

A.

Test the newly trained model.

B.

Document the errors from the built in models.

C.

Obtain image files containing objects to be classified and organize them into classes.

D.

Use IBM SPSS to create new machine learning classifiers.

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Question # 12

If the distribution of the height of American men is approximately normal, with a mean of 69 inches and a standard deviation of 2.5 inches, then roughly 68 percent of American men have heights between and .

Options:

A.

64 inches and 74 inches

B.

66.5 inches and 69 inches

C.

71.5 inches and 76.5 inches

D.

66.5 inches and 71.5 inches

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Exam Code: C1000-059
Exam Name: IBM AI Enterprise Workflow V1 Data Science Specialist
Last Update: Feb 22, 2025
Questions: 62
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