21⟩ What you know about interquartile range as data analyst?
A measure of the dispersion of the data that is shown in a box plot is called the interquartile range. It is the difference between the upper quartile and the lower quartile.
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“Data Analyst frequently Asked Questions in various Data Analysis job Interviews by interviewer. The set of questions here ensures that you offer a perfect answer posed to you. So get preparation for your new job hunting”
31 Data Analysis Questions And Answers
22⟩ Do you know what is data analysis?
Data analysis is the process of systematically applying statistical and/or logical techniques to describe and illustrate, condense and recap and evaluate data.
23⟩ What is mode in data analysis?
The mode of a set of numbers is the number that appears most often.
24⟩ Define inclusion-exclusion principle in data analysis?
A counting principle that you may appear on a data analysis question is the inclusion-exclusion principle, which states that the number of elements in the union of two finite sets equals the count of the members in the two sets minus the number of elements in the intersection of the two sets. The number of elements in a set is denoted using two parallel lines, ||. Using set notation, the inclusion-exclusion principle for sets D and E is written as the following:
|D∪E| = |D| + |E| - |D∩E|
25⟩ List the evaluation criteria as the basis for organizing and analyzing data?
★ Relevance
★ Results/Impact
★ Sustainability
★ Effectiveness
★ Efficiency
26⟩ What is quartile in data analysis?
The quartiles of a set of values are the three points that divide the data set into four equal groups, each representing a fourth of the population being sampled.
27⟩ What does a quantitative data do in data analysis?
Where quantitative data have been collected, statistical analysis can help measure the degree of change that has taken place and allow an assessment to be made about the consistency of data.
28⟩ What is a venn diagram in data analysis?
A Venn Diagram is one way that sets can be visualized.
29⟩ List some steps which are included in data analysis and interpretation process?
This process usually includes the following steps:
★ Organizing the data for analysis (data preparation)
★ Describing the data
★ Interpreting the data (assessing the findings against the adopted evaluation criteria)
30⟩ What is the purpose of the data analysis and interpretation phase?
The purpose of the data analysis and interpretation phase is to transform the data collected into credible evidence about the development of the intervention and its performance.
31⟩ What is disjoint set in data analysis?
If two sets have no members in common then the two sets are called disjoint set.
