The coefficient of determination (r2) tells us a. whether r has any significance. b. the proportion of total variation that is explained. c. that we should not partition the total variation. d. that the coefficient of correlation (r) is larger than 1.

Let hh represent the number of hummingbirds and ss represent the number of sunbirds that must pollinate the colony so it can survive until next year. 6h+4s > 746h+4s> 74 this year, 88 hummingbirds pollinated the colony. what is the least number of sunbirds that must pollinate the colony to ensure that it will survive until next year?