Which statistical tool can test the effect of one variable over another?

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Ette Etuk

Of course simple regression of frequency of wheezing on relative humidity is appropriate.

Godwin Attah Obande

Thank you Ette Etuk. Considered that but wanted to know any other available options.

Gbenga Festus Akomolafe

Well, when it has to do with the influence or effect of one factor over another, simple regression analysis will give you your desired answer.

Thank you Gbenga Akomolafe.