The ranges inhabited by the indian gharial crocodile and, Ask an Expert

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The ranges inhabited by the Indian gharial crocodile and the Australian saltwater crocodile overlap in Bangladesh. Suppose a very large crocodile skeleton is found there, and we wish to determine the species of the animal. Wildlife scientists have measured the lengths of the heads and the complete bodies of several crocs (in centimeters) of each species, creating the regression analyses below:

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a) Do the associations between the sizes of the heads and bodies of the two species appear to be strong? Explain.

b) In what ways are the two relationships similar? Explain.

c) What is different about the two models? What does that mean?

d) The crocodile skeleton found had a head length of 62 cm and a body length of 380 cm. Which species do you think it was? Explain why.

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