Data Science

Types of Questions

Question 1
Marks : +2 | -2
Pass Ratio : 100%
Which of the following command help us to give message description?
git command -m
git command -d
git command -message
none of the mentioned
Explanation:
This only updates your local repository.
Question 2
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 3
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 4
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 5
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 6
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 7
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 8
Marks : +2 | -2
Pass Ratio : 100%
Which of the following allows you to find the relationship you didn’t about?
Inferential
Exploratory
Causal
None of the mentioned
Explanation:
In statistics, exploratory data analysis is an approach to analyzing data sets to summarize their main characteristics, often with visual methods.
Question 9
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 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.