We have been given that when a group of 30-40 year-old were asked to describe their political views in the 1960's and early 1970's, they gave these responses: conservative 28% moderate 35% liberal 31% radical 6%.
We are asked to find out what percentage of 30-40 year-old described themselves as either moderate or conservative during the 1960's and early 1970's.
To find out the percentage of either moderate or conservative during the 1960's and early 1970's we have to add the percentages of both moderate and conservative Americans.
![(28+35)\text{ percent}=63\text{ percent}](https://img.qammunity.org/2019/formulas/mathematics/college/mb2touzi7nkukxzghnak5v8kqfkmuruzcr.png)
Therefore, we can say that 63% of 30-40 year-old Americans described themselves as either moderate or conservative during the 1960's and early 1970's.