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Cotiviti Interview Questions and Answers
20 common asked question in every interview
Data Analytics
Ques:- What is a pivot table and how do you use it in Excel or other tools
Asked In :- Xoriant Solutions Pvt Ltd, Fluid AI, Hidden Brains InfoTech, WSNE Consulting, Netaxis IT Solutions (p), MattsenKumar Services, Protege Solutions, Trigent Software, iROID Technologies, TRICON INFOTECH PVT,
Right Answer:
A pivot table is a data processing tool that summarizes and analyzes data in a spreadsheet, like Excel. You use it by selecting your data range, then inserting a pivot table, and dragging fields into rows, columns, values, and filters to organize and summarize the data as needed.
Data Analytics
Ques:- What is the role of SQL in data analysis
Asked In :- Unyscape Infocom Pvt. Ltd., Hidden Brains InfoTech, Queppelin Technology Solutions, Protege Solutions, Trigent Software, Itobuz Technologies, Aranca (Mumbai), Indocosmo Systems, RANDSTAD INDIA PVT, Namecheap Web Services,
Right Answer:
SQL (Structured Query Language) is used in data analysis to query, manipulate, and manage data stored in relational databases. It allows analysts to retrieve specific data, perform calculations, filter results, and aggregate information to derive insights from large datasets.
Data Analytics
Ques:- What are outliers and how do you handle them in data analysis
Asked In :- Fluid AI, Trigent Software, Itobuz Technologies, RANDSTAD INDIA PVT, GOQii Technologies, Dhruvsoft Services, Radicle Software, Webvillee Technology, Fission Infotech, Noesys Consulting,
Right Answer:
Outliers are data points that significantly differ from the rest of the dataset. They can skew results and affect statistical analyses. To handle outliers, you can:

1. Identify them using methods like the IQR (Interquartile Range) or Z-scores.
2. Remove them if they are errors or irrelevant.
3. Transform them using techniques like log transformation.
4. Use robust statistical methods that are less affected by outliers.
5. Analyze them separately if they provide valuable insights.
Data Analytics
Ques:- What is the purpose of feature engineering in data analysis
Asked In :- KRIOS Info Solutions, WSNE Consulting, AnAr Solutions, Queppelin Technology Solutions, Rock Solid Solutions, Ziffity Solutions, Aranca (Mumbai), Solace Infotech, Born Commerce, GOQii Technologies,
Right Answer:
The purpose of feature engineering in data analysis is to create, modify, or select variables (features) that improve the performance of machine learning models by making the data more relevant and informative for the analysis.
Data Analytics
Ques:- What is the difference between correlation and causation
Asked In :- Unyscape Infocom Pvt. Ltd., Vinove Software & Services Pvt Ltd, AnAr Solutions, STIC SOFT E-SOLUTIONS, Toxsl Technologies, Chegg India, Aranca (Mumbai), iROID Technologies, TNQ Technologies, MatchMove India,
Right Answer:
Correlation is a statistical measure that indicates the extent to which two variables fluctuate together, while causation implies that one variable directly affects or causes a change in another variable.
Django Python
Ques:- Explain inheritance in python with an example ?
Asked In :- Girmiti Software, Verticurl Marketing, Code Genesis, Harbinger, Renault Nissan, iauro systems, Thryve Digital, NAVYA, Microchip, Cradlepoint,
Right Answer:
Inheritance in Python allows a class (child class) to inherit attributes and methods from another class (parent class). This promotes code reuse and organization.

Example:

```python
class Animal: # Parent class
def speak(self):
return "Animal speaks"

class Dog(Animal): # Child class
def bark(self):
return "Dog barks"

# Usage
dog = Dog()
print(dog.speak()) # Output: Animal speaks
print(dog.bark()) # Output: Dog barks
```
Python
Ques:- What are the ways to write a function using call by reference?
Asked In :- Hidden Brains InfoTech, CONDECO SOFTWARE, de facto infotech, V2STech Solutions, Shaligram InfoTech Inc, IDP Education, Mantra Softech, Flannels, Zysk Technologies, OnGrid (India),
Comments
Admin May 17, 2020

Arguments in python are passed as an assignment. This assignment creates an object that has no relationship between an argument name in source and target. The procedure to write the function using call by reference includes:
The tuple result can be returned to the object which called it. The example below shows it:
def function(a, b):
a = 'value'
b = b + 1
# a and b are local variables that are used to assign the new objects
return a, b
# This is the function that is used to return the value stored in b
• The use of global variables allows the function to be called as reference but this is not the safe method to call any function.
• The use of mutable (they are the classes that consists of changeable objects) objects are used to pass the function by reference.
def function(a):
a[0] = 'string'
a[1] = a[1] + 1
# The ‘a’ array give reference to the mutable list and it changes the changes that are shared
args = ['string', 10]
func1(args)
print args[0], args[1]
#This prints the value stored in the array of ‘a’

Business Intelligence JAVA Software Developer/ Programmer Testing
Ques:- What is the difference between object and class?
Asked In :- Xoriant Solutions Pvt Ltd, 63 moons technologies, JSL, Nova Solutions, V2STech Solutions, Sedin Technologies, Aress, Sevya IT, MountBlue Technologies, T24 Defence,
Right Answer:
A class is a blueprint or template that defines the properties and behaviors (methods) of objects. An object is an instance of a class that contains actual values and can perform the behaviors defined by the class.
Business Intelligence Database Analyst/ Programmer
Ques:- Can someone tell me whether we can apply filter on list of values in the 'Value Prompt'? e.g. I have a value prompt (named city) and the prompting is holding around 2000 cities but I want to apply filters on cities so users can select only 15 cities out of 2000 and then run the report. Users should be flexible enought to select any 15 cities from the list. Is it possible. Please advice!
Asked In :- Smart Cube India, Fraser Health, Edgematics, Pendo, cotiviti, smud, imagine learning, tiger analytics, accenture japan,
Right Answer:
Yes, it is possible to apply filters on a value prompt to limit the selection to a specific number of cities. You can create a filter condition that allows users to select only the desired 15 cities from the list of 2000.
Next
Cotiviti is a leading provider of analytics-driven payment accuracy solutions in the healthcare industry. With a focus on helping healthcare organizations improve financial performance and deliver better outcomes, Cotiviti leverages advanced analytics, technology, and deep industry expertise to identify areas of potential revenue leakage and cost savings. Founded in 1979 and headquartered in Atlanta, Georgia, Cotiviti serves a diverse range of clients, including healthcare payers, providers, and pharmacy benefit managers. The company\'s solutions encompass various aspects of payment accuracy, including fraud, waste, and abuse detection, claims auditing, risk adjustment optimization, and quality improvement initiatives. Cotiviti\'s proprietary technology platform utilizes machine learning algorithms and data-driven insights to analyze vast amounts of healthcare data, enabling clients to make more informed decisions and drive operational efficiencies. By identifying inaccuracies and discrepancies in claims processing and reimbursement, Cotiviti helps its clients recover revenue, reduce costs, and enhance overall financial performance.
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