An entomologist observes that the relationship between the antennae length of a

Question

An entomologist observes that the relationship between the antennae length of a certain species of grasshopper and its age appears to be linear, and calculates an R^2 of 78%.This values tells us that: Errors in predicting the age of grasshopper by using its antenna length will not exceed 22%. 78% of a grasshopper antennae length can be explained by its age. The regression model makes accurate prediction for 78% of all grasshoppers. The variability in antenna length depends on the age 78% of the time. There is a moderately strong relationship between antennae length and age.

Explanation / Answer

6 b

7) (20+1-13+2)/2 = 5 Option E

8) E 7.8

9)

10)  A blinding

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