12. Gestation Times and Longevity The following table shows the gestation time in days and the average longevity in years for a variety of mammals in captivity; the potential life span of animals is rarely attained for animals in the wild

a. Draw a scatterplot for the data.

b. Describe the form, direction, and strength for the pattern in the scatterplot.

c. Are there any outliers or other unusual data points in the set? If so, to which animals do these data points correspond?

d. Remove the outliers or unusual data points from the set, and reconstruct the scatterplot. Does it appear that a straight line is appropriate for describing the data?

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Avg Gestation Longevity Avg Animal (days) (yrs) Animal Gestation Longevity (days) (yrs) Ass 365 12 Hippopotamus 238 41 Baboon 187 20 Horse 330 20 Bear (black) 219 18 Kangaroo (gray) 36 7 Bear (grizzly) 225 25 Leopard 98 12 Bear (polar) 240 20 Lion 100 15 Beaver 105 5 Monkey (rhesus) 166 15 Bison 285 15 Moose 240 12 Camel 406 12 Mouse (meadow) 21 3 Cat (domestic) 63 12 Mouse (dom.white) 19 3 Chimpanzee 230 20 Opossum (American) 13 1 Chipmunk 31 6 Pig (domestic) 112 10 Cow 284 15 Puma 90 12 Deer (whitetailed) 201 8 Rabbit (domestic) 31 5 Dog (domestic) 61 12 Rhinoceros (black) 450 15 Elephant (African) 660 35 Rhinoceros (white) 480 20 Elephant (Asian) 645 40 Sea lion (California) 350 12 Elk 250 15 Sheep (domestic) 154 12 Fox (red) 52 7 Squirrel (gray) 44 10 Giraffe 457 10 Tiger 105 16 Goat (domestic) 151 8 Wolf (maned) 63 5 Gorilla 258 20 Zebra (Grant's) 365 15 Guinea pig 68 4