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How to download all your photos, videos and info from Facebook

Posted on May 21, 2025 by Vincent Kofi Amedekah

Facebook has a huge database of almost all your photos, videos and other information. Sometimes we become so addicted that as soon as we take a picture, we simply hit the share button and it’s gone to facebook. yeah, l do that all the time lol. The result, you end up creating albums and everything […]

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Sequence and Series: Calculus definitions.

Posted on May 21, 2025 by Vincent Kofi Amedekah

Ok, I want to take some time to make clear some simple definitions that might be confusing sometimes under sequence and series to help anyone who might need such definition at the last minute for a test or anything. I’m just going to define some important terms but don’t hold me responsible for defining everything […]

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Drawing Box plots and side-by-side Box plots using R

Posted on February 6, 2016 by Vincent Kofi Amedekah

I have discussed little bit about the statistics software R and it’s package R commander and how to use it. Today, l’m going to just touch down a simple aspect of the use of R that can give non users of R some difficulties. I’m describing how to draw a Box plot using R and […]

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Fundamentals of Statistics Practice questions

Posted on May 21, 2025 by Vincent Kofi Amedekah

These are bunch of statistics questions anyone can practice to test their capability in handling statistical data.Anyone can submit their answers using the comment box to any of the questions and l’ll reply if its right or wrong. If you are have problem solving any of the questions, please submit a request for the solution […]

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Vincent Kofi Amedekah

  • How to ensure high quality data in our data systems
  • SQL Interview prep quiz 2 : Explain the difference between CTE and a subquery and give some advantages of using one over the other in OLAP vs OLTP systems
  • SQL interview prep quiz 1: Write sql code to print the letters of the English alphabet in upper case without explicitly writing the letters.
  • Evaluating car class using the k nearest neighbor algorithm from the scikit-learn Machine learning library in Python
  • Predicting the future price of Bitcon using time series analysis
  • Supply Chain Big Data Analysis To Predict Late Delivery Risk Of Customer Orders
  • Differences between aggregation and composition in Python Class
  • How to use analytic functions First_value and Last_value introduced in SQL Server 2012
  • How to use SQL Server extension ROLLUP to summarize data
  • Data profiling using SQL Server Integration Services – SSIS
  • OS questions
  • Restore database in sql server
  • Back up database in SQL Server.
  • Ping database in sql server.
  • Shrink database in sql Server.
  • Next word prediction application- Data Science Capstone
  • SQL Script to populate Date Dimension table in the Data warehouse.
  • Machine Learning predicting quality of exercise performed using smart wearable device data.
  • Comparing accuracy of prediction of Alzheimer’s diagnosis by Machine Learning Algorithms Random Forest, Boosted Trees and Linear Discriminant Analysis to a stack prediction of all the three Algorithms.
  • Brief introduction to the R package caret for Machine Learning.
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