Data Science

Types of Questions

Question 1
Marks : +2 | -2
Pass Ratio : 100%
Which of the following relationship are usually identified as average effects?
Descriptive
Causal
Predictive
None of the mentioned
Explanation:
A correlation is a measure or degree of relationship between two variables.
Question 2
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 3
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.
Question 4
Marks : +2 | -2
Pass Ratio : 100%
Which of the following analysis are incredibly hard to infer?
Inferential
Exploratory
Causal
Mechanistic
Explanation:
Mechanistic analysis are hard to infer except for simple simulations.
Question 5
Marks : +2 | -2
Pass Ratio : 100%
Point out the wrong statement.
Exploratory analyses are usually the final way
Exploratory models are useful for discovering new connection
Exploratory analysis alone should not be used for predicting
All of the mentioned
Explanation:
Exploratory analyses are usually not the final way.
Question 6
Marks : +2 | -2
Pass Ratio : 100%
Causal analysis is commonly applied to census data.
True
False
Explanation:
Descriptive analysis is commonly applied to census data.
Question 7
Marks : +2 | -2
Pass Ratio : 100%
Which of the following principle characteristic is odd man out in the below figure?
Principle 1
Principle 2
Principle 3
Principle 4
Explanation:
Multivariate Data is the only characteristic related to Principle 3.
Question 8
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 9
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 10
Marks : +2 | -2
Pass Ratio : 100%
Point out the correct statement.
Descriptive analysis can be more useful for defining future studies
Correlation does imply causation
Inference is commonly the goal of statistical model
None of the mentioned
Explanation:
Inference depends heavily on the sampling scheme.