Answer
The proportion of 18- to 34-year-old respondents who are likely to buy when made in America is $0.43$.
The proportion of 35- to 44-year-old respondents who are likely to buy when made in America is $0.61$.
Work Step by Step
First, we notice that the respondents who are more likely to buy when made in America are represented by the blue bars.
Now take a look at the '18-34' part in the graph. To determine the proportion of these respondents who favors when made in America, we need to determine the height of the blue bar here corresponding to which value of relative frequency.
The height of the blue bar goes about one-third of the way from $0.40$ to $0.50$ value of relative frequency. So we can say that the proportion of 18- to 34-year-old respondents who are likely to buy when made in America is $0.43$.
To find the proportion of 35- to 44-year-old respondents who are more likely to buy when made in America, we do the same steps.
We locate the blue bar in the '35-44' part. Then its height must be determined and compared with the value of relative frequency.
The height exceeds a little bit over the $0.60$ line value of relative frequency. Therefore, the proportion of 35- to 44-year-old respondents who are more likely to buy when made in America is about $0.61$.
