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

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