Data analysis is the systematic process of collecting, modeling, and analyzing data to extract insights that support decision-making.

Companies are bracing up to the benefits of leveraging data. Data analysis can help a bank to personalize customer interactions, a health care system to predict future health needs, or an entertainment company to create the next big streaming hit.

Work Nation Data Analysis Test Questions and Answers

1. Do you have experience as data analyst?

Yes

No

 

2. What is your highest qualifications?

SSCE

DIPLOMA

HND

PGD

BSC

MSC

PHD

 

3. Do you have any certification in data analyses?

Yes

No

 

4. Do you understand cleaning data in data analysis?

 

Yes

No

 

5. Do you understand cleaning data in data analysis?

Yes

No

 

6. Are you familiar with statistical methods used in data analysis?

Yes

No

 

7. Which method do you often use?

Mean

Mode

Range

None of the above

 

8. Are you familiar with any analytical software?

Yes

No

 

9. Which analytic software do you often use?

MICROSOFT POWER BI

TABLEAU

LOOKER of companies

None of the above

 

10. Are you familiar with scripting languages?

Yes

No

 

11. Which scripting language are you good in using?

R

Python

SQL

JavaScript

 

12. Are you familiar with the use of data statistical packages?

Yes

No

 

13. Which of them are you good in using?

Excel

SPSS

SAS

STATA

 

14. Are you good with using charts to interpret data?

 

Yes

No

 

15. What type of chart are you good in using?

Bar

Chart

Line Chart

Pie Chart

Maps

 

16. Are you currently working as data analyst?

Yes

No