Important MCQs Time Series Quiz 2

The post is about MCQs Time Series Quiz. There are 20 multiple-choice questions related to components of a time series, multiplicative model of a time series, trend equation, simple average method, and moving average analysis. Let us start with the MCQS Times Series Quiz.

Online MCQs Time Series Analysis and Forecasting Quiz with Answers

1. What is a common approach to handling missing data in time-series analysis?

 Ignoring missing data as it has no impact on time-series analysis.

 Replacing missing values with zeros.

 Dropping all rows with missing data.

 Interpolating missing values based on nearby data points.

2. If the origin in a trend equation is shifted forward by 3 years, $X$ in the equation $Y=a+bx$ will be replaced by:

 None of the above

 $ X + 3 $

 $ 3X $

 $ X-3$

3. In time-series analysis, what type of plot is commonly used to visualize the autocorrelation of a time series?

 Scatter plot

 Box plot

 Histogram

 Autocorrelation plot

4. A method full of subjectivity to find out the trend line is

 Semi-Averages method

 All of the above

 Moving Averages method

 Free-hand method

5. The simple average method is used to calculate

 None of the above

 Seasonal indices

 Trend values

 Cyclic variation

6. The moving average in a time series is free from the influences of:

 Seasonal and cyclic variations

 Seasonal and irregular variations

 Trend and cyclical variations

 Trend and random variations

7. A simple average method for finding out seasonal indices is good when

 The time-series is free from trend

 The time-series has no trend and cyclic variation

 The series has all the components of the time-series

 The time-series has no cyclic variation

8. If the trend line with 1995 as the origin is $Y = 20.6 + 1.68 X$, the trend line with origin 1991 is

 $ Y = 34.61 + 1.68 X $

 None of the above

 $ Y = 20.6 + 6.72 X $

 $Y = 13.88 + 1.68 X $

9. I multiplicative model of a time-series with components $T, S, C,$ and $I$ is

 All the above

 $ C \times I = Y / (T \times S) $

 $ Y = T \times S \times C \times I $

 $ T = Y/ (S \times C \times I) $

10. Irregular variations are

 All of the above

 Cyclic

 Regular

 Episodic

11. Value of $b$ in the trend line $Y=a+bX$ is

 None of these

 Both positive and negative

 Always positive

 Always negative

12. The equation $Y= \alpha \beta^x$ represents

 Logarithmic curve

 None of these

 Gompertz curve

 Exponential curve

13. In time-series feature engineering, what is a lag feature?

 A feature that captures the historical values of a variable at different time intervals.

 A feature used for imputing missing values.

 A feature that encodes categorical data.

 A feature that represents the time duration between data points.

14. Irregular variations in a time-series are caused by

 Epidemics

 Lockouts and strikes

 Floods

 All the above

15. If the origin in the trend equation $Y=a+bx$ is shifted backward by 2 years, the variable $X$ in the trend equation will be replaced by

 None of the above

 $ X + 2 $

 $ X – 2$

 $ X/2 $

16. What is the primary purpose of a seasonal decomposition plot in time-series analysis?

 To visualize the distribution of the data.

 To identify the trend component in the time series.

 To plot data points in three dimensions.

 To separate a time series into its underlying components.

17. In time-series analysis, what is the purpose of scaling features?

 To remove seasonality from the time series.

 To add more features to the dataset.

 To standardize the range of feature values.

 To create lag features.

18. An additive model of a time-series with the components $T, S, C$, and $I$ is

 $ Y=T+S+C+I $

 $ Y=T+S+C\times I $

 $ Y = T + S \times C + I $

 $ Y = T + S \times C \times I $

19. For the given five values 15, 24, 18, 33, 42, the three years moving averages are:

 19, 30, 31

 19, 25, 31

 19, 22, 33

 None of the above

20. A time series consists of

 Short-term variations

 Long-term changes

 Irregular variations

 All of the above

(adsbygoogle = window.adsbygoogle || []).push({});

 Loading …

MCQs Time Series Quiz

(adsbygoogle = window.adsbygoogle || []).push({});

• Irregular variations in a time series are caused by
• An additive model of a time series with the components $T, S, C$, and $I$ is
• I multiplicative model of a time series with components $T, S, C,$ and $I$ is
• A method full of subjectivity to find out the trend line is
• If the origin in a trend equation is shifted forward by 3 years, $X$ in the equation $Y=a+bx$ will be replaced by:
• If the origin in the trend equation $Y=a+bx$ is shifted backward by 2 years, the variable $X$ in the trend equation will be replaced by
• If the trend line with 1995 as the origin is $Y = 20.6 + 1.68 X$, the trend line with origin 1991 is
• The equation $Y= \alpha \beta^x$ represents
• The simple average method is used to calculate
• Irregular variations are
• A simple average method for finding out seasonal indices is good when
• The moving average in a time series is free from the influences of:
• Value of $b$ in the trend line $Y=a+bX$ is
• A time series consists of
• For the given five values 15, 24, 18, 33, 42, the three years moving averages are:
• What is the primary purpose of a seasonal decomposition plot in time series analysis?
• In time series analysis, what type of plot is commonly used to visualize the autocorrelation of a time series?
• In time series feature engineering, what is a lag feature?
• In time series analysis, what is the purpose of scaling features?
• What is a common approach to handling missing data in time-series analysis?

https://gmstat.com

https://rfaqs.com