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11/23/2022
12 : 34
Array algorithm, noting complexity
Python, Data Structures, Arrays, Complexity, Big O, InterviewQs Array algorithm, noting complexity Python Data Structures Arrays Complexity Big O Forward this email to a friend or colleague and
11/21/2022
12 : 34
Removing a trend from time series data
Detrending, Machine Learning, Data Manipulation, Python, Forecast, InterviewQs Removing a trend from time series data Detrending Machine Learning Data Manipulation Python Forecast Forward this email to
11/18/2022
12 : 34
Calculating cumulative sales with windowing functions
SQL, Database Querying, Window Function, Cumulative Sum, Subquery, InterviewQs Calculating cumulative sales with windowing functions SQL Database Querying Window Function Cumulative Sum Subquery
11/16/2022
12 : 34
Setting up a custom alert system for changes to a URL
Python, Data Structures, External Dataset, InterviewQs Setting up a custom alert system for changes to a URL Python Data Structures External Dataset Forward this email to a friend or colleague and
11/14/2022
12 : 34
Calculating the Root Mean Squared Error (RMSE) of a model
Python, Data Structures, RMSE, Arrays, InterviewQs Calculating the Root Mean Squared Error (RMSE) of a model Python Data Structures RMSE Arrays Forward this email to a friend or colleague and challenge
11/11/2022
12 : 34
Precision, recall, and F-1 scores
Precision, Recall, F1 Score, Machine Learning, InterviewQs Precision, recall, and F-1 scores Precision Recall F1 Score Machine Learning Forward this email to a friend or colleague and challenge them to
11/10/2022
11 : 45
Moving average trading strategy
SQL, Database Querying, Window Function, Subquery, InterviewQs Moving average trading strategy SQL Database Querying Window Function Subquery Forward this email to a friend or colleague and challenge
11/7/2022
12 : 34
Selecting computers for a company
Data Analysis, Python, Pandas, Data Manipulation, Data Visualization, External Dataset, Case Study, InterviewQs Selecting computers for a company Data Analysis Python Pandas Data Manipulation Data
11/4/2022
12 : 34
Matrix multiplication using nested loops
Python, Data Structures, Algorithms, Matrix Multiplication, InterviewQs Matrix multiplication using nested loops Python Data Structures Algorithms Matrix Multiplication Forward this email to a friend
11/2/2022
12 : 34
Evaluating lottery system
Statistics, Hypergeometric Distribution, Probability, InterviewQs Evaluating lottery system Statistics Hypergeometric Distribution Probability Forward this email to a friend or colleague and challenge
10/31/2022
12 : 34
Highest performing students by college program
SQL, Database Querying, Subquery, Case Statement, InterviewQs Highest performing students by college program SQL Database Querying Subquery Case Statement Forward this email to a friend or colleague
10/28/2022
12 : 34
Multicollinearity in linear regression
Statistics, Regression, Multicollinearity, PCA, InterviewQs Multicollinearity in linear regression Statistics Regression Multicollinearity PCA Forward this email to a friend or colleague and challenge
10/26/2022
12 : 34
First recurring character
Python, Algorithms, Sets, InterviewQs First recurring character Python Algorithms Sets Forward this email to a friend or colleague and challenge them to solve it. Hi, Write a function that returns the
10/24/2022
12 : 34
Staffing for hospital births
Statistics, Probability Theory, Poisson Distribution, InterviewQs Staffing for hospital births Statistics Probability Theory Poisson Distribution Forward this email to a friend or colleague and
10/21/2022
12 : 34
Calculating cost per square foot
SQL, Database Querying, Subquery, Join, InterviewQs Calculating cost per square foot SQL Database Querying Subquery Join Forward this email to a friend or colleague and challenge them to solve it. Hi,
10/19/2022
12 : 34
Simulating wealth over time while playing a biased coin toss game
Python, Simulation, Statistics, Data Visualization, Kelly Criterion, InterviewQs Simulating wealth over time while playing a biased coin toss game Python Simulation Statistics Data Visualization Kelly
10/17/2022
12 : 34
Evaluating a Tic-tac-toe game
Python, Algorithms, Data Structures, Arrays, InterviewQs Evaluating a Tic-tac-toe game Python Algorithms Data Structures Arrays Forward this email to a friend or colleague and challenge them to solve
10/14/2022
12 : 34
Sample size estimation for smart watch users
Statistics, Sample Size Estimate, Z-score, Cochran's Formula, InterviewQs Sample size estimation for smart watch users Statistics Sample Size Estimate Z-score Cochran's Formula Forward this
10/12/2022
14 : 28
Percent of months logged in
SQL, Database Querying, Subquery, WITH Statement, InterviewQs Percent of months logged in SQL Database Querying Subquery WITH Statement Forward this email to a friend or colleague and challenge them to
10/10/2022
12 : 34
Foggiest months
Data Analysis, Python, Pandas, Data Manipulation, Data Visualization, External Dataset, InterviewQs Foggiest months Data Analysis Python Pandas Data Manipulation Data Visualization External Dataset