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TABLE 10-6
Two samples each of size 25 are taken from independent populations assumed to be normally distributed with equal variances. The first sample has a mean of 35.5 and standard deviation of 3.0 while the second sample has a mean of 33.0 and standard deviation of 4.0.
-Referring to Table 10-6, the pooled (i.e., combined) variance is _____.
Deserts
Extremely dry areas of land with sparse vegetation, characterized by receiving less than 25 centimeters (10 inches) of precipitation per year.
Earth's Land Surface
The solid surface layer of the Earth, as opposed to the ocean or sky; includes continents and islands.
Desert Insects
Insects adapted to survive in desert environments with extreme conditions such as high temperature and low moisture.
Body Covering
The outer protective layer or surface of an organism, such as skin in humans, feathers in birds, or fur in mammals.
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