At the start of this chapter we promised you would be able to:

• accurately calculate measures of central tendency using mathematical methods
• correctly determine measures of dispersion through proper mathematical techniques
• apply laws of probability accurately by following step-by-step mathematical methods
• use probability distribution methods correctly with the right mathematical procedures
• apply sampling distribution methods properly by following correct mathematical steps

Tick each one you can genuinely do.

So, are you there yet?

You're competent when you can confidently do 50% or more of what this chapter promised.

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