A Statistical Assistant turns messy source records into clean, checked numbers and clear charts that statisticians, actuaries and managers can trust. You will learn it in three stages. First, spreadsheet and statistics basics, so you can compute and check data by hand. Second, the job-ready toolkit: SQL, Excel at a professional level, data cleaning, reporting, and a first scripting language. Third, advanced work: choosing the right statistical tests, writing reusable code, and working with actuarial or survey data. Everything here is free. You do not need to be a math genius. You need to be ca
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Every stage from beginner to expert, with lessons, practice drills, projects, interview questions and free resources. Free with a Rolearch account.
Stage 1 of 3 · about 8 weeks
Compute basic statistics correctly, enter and check data accurately, and make a clean chart in a spreadsheet.
Descriptive statistics
Almost every report you write starts with mean, median, spread and counts. If you understand what each one says about the data, you will spot numbers that look wrong before anyone else does.
Spreadsheet fundamentals (Excel / Google Sheets)
Excel and Google Workspace are the daily tools in this job. Fast, tidy spreadsheets save hours and prevent errors.
Accurate data entry and source checking
The job asks you to verify that source data is complete and accurate. Bad inputs make every later result wrong, however good the math.
Charts and clear reporting
Your numbers only matter if the reader understands them. Good charts show one point clearly and do not mislead.
Then 2 more stages (about 36 weeks in all) with lessons, drills, projects, 6 interview questions with strong answers and free resources.