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rosas8
17.07.2019 •
Mathematics
Suppose a simple random sample of size n=64 is obtained from a population with mμ=84 and σ=16. (a) describe the sampling distribution of x. (b) what is p(x)> 87.6? (c) what is p x≤79.2? (d) what is p 81.3
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Ответ:
Explanation:
We need to find the area of the rectangle:
Area: A = L * w = length * width = 12 ft. * 18 ft. = 216 ft.²
Then we need to find the area of the TRAPEZOID that is on top of the rectangle:
Area: A = (1/2) * (base 1 + base 2) * height
= (1/2) * (18 ft. + 10 ft.) * 6 ft.
= (1/2) * ( 28 ft.) * (6ft.)
= 84 ft.²
Now, we add the 2 (TWO) areas together, to get the
216 ft.² + 84 ft.² = 300 ft.² .