Question

Response Questions Part A To B A. The black-capped chickadee (Poecile atricapilla) is a small songbird commonly found in the northem United States and Canada. Chickadees often live in cooperative flocks, using a complex language to communicate about food sources and predator threats. In an experiment, researchers recorded chickadee vocalizations in an aviary when presented with predators of various sizes. The table contains data representing the average number of D notes per chickadee warning call for each tvpe of predator, along with the predator wingspan (in centimeters) Predator Number of Predator Number of Predator wingspanD notes Predator wingspanD notes (cm)per call (cm)per call Pygmy owl31.2 Saw-whet ow 38.8 57.6 60.6 Cooper's hawk80.6 Short-eared ow89.2 Prairie falcon 109.9 3.96 4.09 2.76 3.04 3.18 Gyrfalcon 115.1 Peregrine falcon120.0 Red-tailed hawk120.0 Great horned ow 120.4 132.2 2.28Rough-legged hawk 138.0 2.25 2.80 2.56 2.46 2.06 1.36 Kestrel Merlin Great gray owl 2.20 Use the software of vour choice to find the correlation between the number of D notes per call and wingspan. (Enter your answer rounded to four decimal places.)-0.65919 or-0.6592 is not correct solution B. In this exercise you will use the Correlation and Regression applet to make scatterplots with 10 points that have correlation close to 0.7. The lesson here is that many patterms can have the same correlation. Always plot your data before you trust a correlation Stop after adding the first two points. What is the value of the correlation? (Enter your answeir rounded to four decimal places).

Answer 1