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Question 1

Which of the following tools would be best to use to calculate the interquartile range, median, mean, and standard deviation of a column in a table that has 5.000.000 rows?

Options :

A : Microsoft Excel

B : R

C : Snowflake

D : SQL

Answer: B

Question 2

Which of the following best describes the process of examining data for statistics and information about the data?

Options :

A : Cleansing

B : search

C : Profiling

D : Governance

Answer: D

Question 3

What technique is used to swap the values in rows and columns of tabular data?

Options :

A : Transposition.

B : Regression.

C : Association.

D : Classification.

Answer: A

Question 4

Which of the following is an example of PII?

Options :

A : Age

B : Name

C : Ethnicity

D : Gender

Answer: B

Question 5

A data analyst wants to create “Income Categories” that would be calculated based on the existing variable “Income”. The “Income Categories” would be as follows: Income category 1: less than $1 Income category 2: more than $1 and less than $20,000 Income category 3: more than $20,001 and less than $40,000 Income category 4: more than $40,001 Which of the following data manipulation techniques should the data analyst use to create “Income Categories”?

Options :

A : Data merge

B : Derived variables

C : Data blending

D : Data append

Answer: B