AI Tech Trainee module 3

AI Tech Trainee module 3

Professional Development

10 Qs

quiz-placeholder

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AI Tech Trainee module 3

AI Tech Trainee module 3

Assessment

Quiz

Professional Development

Professional Development

Hard

Created by

Fabian Stadler

Used 1+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which of these is not necessarily true of a time series?

Time series data are taken in equally spaced points in time

Time series data can be ordered by time

Time series data are a special type of financial data

Time series data are quantitative

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which of the following is not a result of time series decomposition?

Trend

Cyclical component

Seasonality

Residuals

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

In time series, 'taking a lag of a time series' means looking at how well are we able to predict past data.

True

False

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What can we learn by calculating autocorrelations?

How closely related are two different time series

How much do the residuals of different periods vary around the mean

How closely related is a time series with some lag of itself

How much more seasonality there is in the time series relative to how much trend there is

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Which one of these is not a condition for a time series to be stationary?

Constant mean

Constant variance (homoskedasticity)

No seasonality

Small residuals

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

How do we call the group of very simple models:

Easy models

Simpletons

Naïve models

Average models

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Time series model components can be usually decomposed using an additive or multiplicative approach.

True

False

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