The answer to your Q the better one it is the 4- pound bag because it coast less money
Answer:
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The horizontal line has same y- coordinate for each x- coordinate, and is parallel to the x-axis so it is:
The vertical line has same x- coordinate for each y- coordinate, and is parallel to the y-axis so it is:
<em>Refer to graphs.</em>
The parabola opens towards left, this means the squared term is y with negative coefficient.
The vertex is given to be the point (-1,-3). So, the general equation of the parabola will be like:

where a is any constant.
In the given options, only 1 such equation is available and that is option C.
So the answer to this question is option C
I believe that there are four different outcomes.
The probability that the sample mean is within 2 standard deviations on the high side and 1 standard deviation on the low side is about 0.8186.