Draw the conditional standard deviation of primary school attendance separately for each of the three SRTATA, and this, at various values of EXPEQ. Explain what you find.

Answer

• After choosing the appropriate variable(s), click on  the button OK.

STEP 2: Use the DAD Application: DISTRIBUTION|CONDITIONAL STANDARD DEVIATION

• After choosing the appropriate variable(s) and parameters, click on the GRAPH button.

RESULTS