IDAC Unit 1

This type of data explains the "how" and "why" of a

particular phenomenon or behavior.

• Quantitative

• Qualitative data

• Discrete data

• Numerical data

Big data is a collection of data that is ___ in volume, ____ with time.

• average

  growing rapidly

• huge

  shrinking

• huge

  growing rapidly

• average

  shrinking

Which of the following are examples of big data?

Select all correct answers.

• New York Stock Exchange

• An iphone with a full memory sim card

• Facebook

• Netflix

The presence of big data can be explained by 3 reasons.

What are they?

• Volume

  Velocity

  Variety

• Velocity

  Speed

  Volume

• Size

  Trend

  Velocity

• Variety

  Velocity

  Trend

Which of the following is not a type of qualitative data?

• Images

• Videos

• Opinions

• Yes/No

  answers

A variable is an element, feature or factor that is liable to ___.

• inflate

• be constant

• change

• influence

You are working at GRAB to help improve their business process.

Describe how you can use data to help you improve those processes.

You are working with the marketing and purchasing department at ZARA.

Describe how you would use data to help you make important decisions for this year Christmas' collection.

Which of the following is not a type of categorical data?

• Sarah's weight is 56.42kg

• Peter uses Dove shampoo

• John is a male.

• Mrs Tan drives a blue car.

Numerical data represents ____.

• countable items

• numbers

• infinite numbers

• categories