The answer is B because a linear function is y=mx+b
If my above assumption is correct, we can easily find the area of the left side of the rectangle by finding the area of 3 things. The first is the area of the entire region.
At = (0.8)(1.0+1.4) = 1.92
Next we need the area of the circle. Which is pi*r^2, with r being height divided by two. (0.4)
C = 0.502
Finally we need to find the area of the rectangle left region. Which is basically the rectangle from the center of the circle region to the end of the left of the entire region. This is just (1.0)(0.8) = 0.8
Finally we can find the area of the light blue area by just subtracting half the area of the circle (dark blue) from the area we just calculated.
0.8 - (0.502 / 2) = 0.549
Now for the probability we do this area divided by total area.
0.549/1.92 = 0.285 or about 0.29 which is just 29%
From standard normal distribution tables and with area to the left of Z being 87.9% or 0.879,
Z= 1.17 (that is, 1.1 at the left column + 0.07 at the top row where 0.879 is found)
A <em>parameter </em>is a number describing a whole population (e.g., population mean), while a <em>statistic </em>is a number describing a sample (e.g., the sample mean).
<span> The exponent is negative so we factor out -1:
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