Solved – a test of independence

I need to define what a test of independence is, without the use of heavily statistic terms.

I would start by defining what you mean by independence. For example,

If two variables are independent this means that knowing the value of one variable does not tell you anything about the value of the other variable.

Then I would describe the test:

To test for independence we construct a table of values that we would expect to see if the variables were independent. If we observed something "very" different from these expected values, we would conclude that the variables are unlikely to be independent.

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