Data Science

Types of Questions

Question 1
Marks : +2 | -2
Pass Ratio : 100%
Which of the following analysis helps out to find the effect of variable change?
Inferential
Exploratory
Causal
None of the mentioned
Explanation:
Causal Analysis provides the real reason why things happen and hence allows focused change activity.
Question 2
Marks : +2 | -2
Pass Ratio : 100%
Which of the following is the common goal of statistical modelling?
Inference
Summarizing
Subsetting
None of the mentioned
Explanation:
Inference is the act or process of deriving logical conclusions from premises known or assumed to be true.
Question 3
Marks : +2 | -2
Pass Ratio : 100%
Accurate prediction depends heavily on measuring the right variables.
True
False
Explanation:
Prediction is very hard, especially for future references.
Question 4
Marks : +2 | -2
Pass Ratio : 100%
Point out the correct statement.
Exploratory analyses are not usually the final way
Inferential models are useful for discovering new connection
Inference involves estimating uncertainty
All of the mentioned
Explanation:
Statistical inference is the process of deducing properties of an underlying distribution by analysis of data.
Question 5
Marks : +2 | -2
Pass Ratio : 100%
Which of the following is more applicable to the below figure?
Descriptive
Causal
Predictive
None of the mentioned
Explanation:
Google trends helps to describe the set of data.
Question 6
Marks : +2 | -2
Pass Ratio : 100%
Which of the following analysis is usually modeled by deterministic set of equations?
Predictive
Causal
Mechanistic
All of the mentioned
Explanation:
Equations are based on physical/engineering science.
Question 7
Marks : +2 | -2
Pass Ratio : 100%
Which of the following analysis should come in place of question mark in the below figure?
Inferential
Exploratory
Causal
None of the mentioned
Explanation:
Inferential statistics is concerned with making predictions or inferences about a population from observations and analyses of a sample.
Question 8
Marks : +2 | -2
Pass Ratio : 100%
Which of the following model is usually a gold standard for data analysis?
Inferential
Descriptive
Causal
All of the mentioned
Explanation:
A causal model is an abstract model that describes the causal mechanisms of a system.
Question 9
Marks : +2 | -2
Pass Ratio : 100%
Which of the following uses data on some object to predict values for other object?
Inferential
Exploratory
Predictive
None of the mentioned
Explanation:
A prediction is a forecast, but not only about the weather.
Question 10
Marks : +2 | -2
Pass Ratio : 100%
Point out the correct statement.
Descriptive analysis is first kind of data analysis performed
Descriptions can be generalized without statistical modelling
Description and Interpretation are same in descriptive analysis
None of the mentioned
Explanation:
Descriptive analysis describe a set of data.