Response:
first option
Detailed explanation:
The equation expressing a proportional relationship is
y = kx ← with k as the proportional constant
Here k takes the value of 0.7, hence
y = 0.7x ← represents the required equation
Given
=
(cross-multiply)
10y = 7x (dividing both sides by 10)
y =
x = 0.7 x ← emerges as the needed equation
We cannot infer that the proportion of wives married less than two years intending to have children is significantly greater than that of those married for five years.