Data analysis for safety: mean, median, mode, confidence intervals, probability and Pareto
CSP written lesson, 5 min read. CSP Domain 2: Program Management
Written with AI help from the rules it covers, then fact-checked against them. Study aid, not site-specific safety advice. The official rule controls.
What you'll learn
- Calculate mean, median and mode and say when each is the better summary
- Build and read a 95% confidence interval for a mean
- Combine probabilities for independent events with AND and OR
- Use a Pareto analysis to find the few categories that drive most losses
What this lesson covers
This lesson covers the basic statistics the CSP blueprint names, using safety data: averages, spread, confidence intervals, simple probability and Pareto analysis. It matters because exam questions hand you a small data set and ask what it shows.
This lesson is included with a pass
Written lessons come with every CSP pass, along with the video lessons, the question bank, mocks and the tutor. $80 per exam for 6 months, or $143 for all three for 12 months.
Try the free safety management systems and leading indicators practice questions