H ”6-H“ 75% I 3:44 PM 9. a 0!? poinls Previous Answers I}: My Notes 9 Ask Your Feather For mallard ducks and Canada geese, what

percentage of nests are successful (at least one

offspring survives)? Studies in Montana, Illinois,

Wyoming, Utah, and California give the following

percentages of successful nests (Reference: The

Wildlife Society Press, Washington, 0.0.). it Percentage amass For mllasl duck nests

BE: 38 52 dd. 29 )r Peroenlage success for Cmada goose nests

Bﬁ Ed 2? 23' 45 (a) Use a calculator to verify that Ex 2 259; 2x2 = 15,451; Ely = 189; and ﬂy? = 7,695. L: s? 5:1 3599

[y s? 5,1 2539 (b) Use the results of part (a) to compute the

sample mean, variance, and standard deviation

for x, the percent of successful mallard nests. (Round your answers to two decimal places.) 3 8.111

52 31539

5 mt (c) Use the results of part (a) to compute the

sample mean, variance, and standard deviation

for y, the percent of successful Canada goose

nests. (Round your answers to two decimal places.) E 8.10

52 2139.12

5 14.46 (d) Use the results of parts (b) and (c) to

compute the coefficient of variation for

successful mallard nests and Canada goose

nests. (Round your answers to one decimal

place.) Y CV 2.0-! 96. 1.66 '16