Step-by-step explanation:
From given data,
n = 1496
x = 478
Proportion estimate ( p ) = [tex]\frac{x}{n}[/tex]
= [tex]\frac{478 }{1496}[/tex] = 0.3195 ≅ 0.31
Proportion estimate ( p ) = 0.31
∴ The proportion of new car buyers who prefer foreign cars -> 0.31