(Solved): [3] A psychologist has developed a "Cognitive Flexibility Scale" measuring an individual's ability t ...

[3] A psychologist has developed a "Cognitive Flexibility Scale" measuring an individual's ability to adapt their thinking and behavior in response to changing situations. The scale is normally distributed with Mean (mu)=60 & Standard deviation (sigma)=7. The psychologist wants to know the minimum score a person needs to be in the top 20% of cognitive flexibility. also draw the z score curve