exam Maths Puzzle Numerical Ability

The following I was to write each statment using mathematical symbols. I am not sure that I did them correct, can you please check my work and tell me if i did these correct? Thank

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How could nonparametric data be transformed into parametric data that could be used in an ANOVA? How do the fe and fo in a nonparametric test correspond to the SSE and the SSA in an ANOVA? The Ngs had eight grandchildren in 2002. In 2003, they had 12. Find the percent increase in the number of grandchildre from 2002-2003.