Suppose pages per book in a library have an unknown distribution with mean 297 and standard deviation 25 pages. a sample of size n=75 is randomly taken from the population and the sum of the values is taken. using the central limit theorem for sums, what is the standard deviation for the sample sum distribution?

a. the residual plot for model 1 has a random pattern and is a good fit for the data.

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step-by-step explanation:

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answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq