The Time It Takes to Go a Given Distance Depends

question 83

Essay

The time it takes to go a given distance depends on the rate.
(a)Write a function t(r)for the time it takes if the distance is 400 miles and the rate is r miles per hour.
(b)How much time is needed when the rate is x?
(c)If the speed is increased by 10 miles per hour,how much less time is needed?
(d)How much less time is needed per mile per hour increase?
(e)If the speed is increased by h,how much less time is needed?
(f)How much less time is needed per unit increase?

Recognize the significance and how to establish internal and external validity in studies.

Identify key concepts related to research design and methodology in psychology.

Understand the application and importance of operational definitions in research.

Appreciate the principle of parsimony and its role in selecting theories.