(a) A golf instructor examined student data. He found that when a student takes longer to hit, it implies that the ball will land closer
to the hole. What can he conclude?
O There is no correlation between amount of time before hitting and distance from the hole.
O There is a correlation between amount of time before hitting and distance from the hole. There may or may not be causation. Further studies
would have to be done to determine this.
O There is a correlation between amount of time before hitting and distance from the hole. There is probably also causation. This is because
there is a decrease in the distance from the hole with an increase in the amount of time before hitting.
(b) A city conducted a traffic study. It reported that having more signals does not indicate a shorter or longer commute time for
drivers. What can be determined?
O There is no correlation between number of signals and commute time.
O There is a correlation between number of signals and commute time. However, there is no causation. This is because there is probably an
increase in the commute time with an increase in the number of signals.
There is a correlation between number of signals and commute time. There may or may not be causation. Further studies would have to be
done to
determine this.
(c) Employees at a large office building took a survey. The results show that those who began work earlier tended to drink less tea.
Which statement is most likely true?
O There is no correlation between start time and amount of tea consumed.
OThere is a correlation between start time and amount of tea consumed. There may or may not be causation. Further studies would have to bet
done to
determine this.
O There is a correlation between start time and amount of tea consumed. However, there is no causation. This is because there is a decrease in
the amount of tea
consumed with an earlier start time.