how to found out prediction of a data house price?

tamararidwantamararidwan Member Posts: 7 Contributor I
edited October 2019 in Help
hi, so I'm new in this Rapidminer and i have some difficulties, it would be great if someone can help me
i wanted a prediction of a data house price per HousingMedianAge, but it seems like the result always root_mean_square_error. i'm not sure what was wrong since i'm new and a student as well. the data is in numerical

and i'm not really sure if the whole models i made was right or not

but it might be wrong since the result is always error, but i found a formula to found out the result of te prediction using rmse formula

best regard,

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