Planets (more or less) Is there any pattern to the locations of the planets in a distant solar system? The table shows the average distance of each of the planets from the star.

a) Make a scatterplot, and describe the association.
(Remember: direction, form, and strength!)

b) Why would you not want to talk about the correlation between a planet’s Position Number and Distance from the sun?

c) Make a scatterplot showing the logarithm of Distance vs.
Position Number. What is better about this scatterplot?

54. Flights 2016 Here are the number of domestic flights flown in each year from 2000 to 2016

a) Find the correlation of Flights with Year.

b) Make a scatterplot, and describe the trend.

c) Why is the correlation you found in part a not a suitable summary of the strength of the association?

d) It turns out that the value reported for 2016 was only for the period January to June. What should we have done with that point?
*e) Find Kendall’s tau for these data. Would that be an appropriate measure for summarizing their relationship? Explain.

Planet Number 1 Position Distance from Sun (million miles) ABCDEFGH 36 23456 72 90 145 5 489 990 7 1798 8 2796 J 9 3673