Advanced Placement (AP), 05.01.2021 18:10 emilyburrell575
In two common species of flowers, A and B, the proportions of flowers that are blue are and ,
respectively. Suppose that independent random samples of 50 species-A flowers and 100 species-B flowers
are selected. Let be the sample proportion of blue species-A flowers and be the sample proportion of
blue species-B flowers. What is the mean of the sampling distribution of ?
A) Pa- Pb
B)
C) Pa^ - PB^
D)
E) [tex]\sqrt{\frac{Pa(1-pa)}{50}+ [tex]
Answers: 1
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In two common species of flowers, A and B, the proportions of flowers that are blue are and ,
respe...
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