Advanced Algebra Ch. 2 Name_______________________
2.5 #2 Worksheet
1. A researcher would like to estimate the linear function relating the gestation period of an animal, G,
and its life expectancy, L. She collects the following data.
Animal Gestation, G
(in days)
Life Exp.,
L
Chicken 22 7.5
Duck
28
10
Goat
151
12
Lion
108
10
Parakeet
18
8
Pig 115 10
Rabbit 31 7
Squirrel 44 9
Let G represent the independent variable and L the dependent variable.
a) Draw a scatter diagram of the data (on the graph to the upper right).
b) Write the equation of the line of best fit relating gestation and life expectancy.
c) Interpret the slope.
d) Find the life expectancy of an animal whose gestation period is 89 days.
