question 24

24. Consider the data in Exercise 6 (page 278) on forming icicles. (a) Find the correlation between time and icicle length. (b) If icicle length were measured in inches rather than centimeters (Note: 1 inch =2.54cm ), how would the correlation change? 6. How fast do icicles grow? Here are data on two variables, Time measured in minutes and Length measured in centimeters, for one set of conditions: no wind, temperature 11C, and water flowing over the icicle at 12 milligrams per second. Data from N. Maeno et al., Growth rates of icicles, Journal of Glaciology, 40 (1994): 319-326. Which is the explanatory variable? Make a scatterplot. Describe in words the direction, form, and strength of the relationship