A muliple regression analysis between yearly income Y in 10

A muliple regression analysis between yearly income (Y in $ 1,000s), college grade point average (X_1), age of the individuals (X_2), and the gender of the individual (X_3, zero representing female and one representing male) was performed on a sample of 10 people, and the following results were obtained. Determine whether or not coefficients X_1, X_2, & X_3 are significant. X_1 and X_2 are significant, but X_3 is not significant. X_1 is significant, but X_2 and X_3 are not significant. X_1 and X_3 are significant, but X_2 is not significant. All X_1, X_2, and X_3 are significant. All independent variables are not significant.

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