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The table below shows the amounts of money spent on education per student in a recent year in two regions of the United States.$$\begin{array}{|c|c|c|c|}\hline \text { Alaska } & {9564} & {\text { Texas }} & {6771} \\ \hline \text { California } & {7405} & {\text { Arkansas }} & {6276} \\ \hline \text { Washington } & {7039} & {\text { Louisiana }} & {6567} \\ \hline \text { Oregon } & {7642} & {\text { Oklahoma }} & {6299} \\ \hline\end{array}$$Find the mean for each region.
$7912.50,6460.75$
Intro Stats / AP Statistics
Algebra
Chapter 12
Probability and Statistics
Section 6
Statistical Measures
Sampling and Data
The Normal Distribution
Introduction to Combinatorics and Probability
Campbell University
McMaster University
Harvey Mudd College
Lectures
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So for number one, we are asked to find the average or the mean for both sets of regions of various states on various amounts of money. And so we're going to add up the Pacific states values. So those values were 9564 plus the 7405 plus the 7039 plus the 7642. And then remember, when you take an average, which this is what the X bar means right here. Um, that means we have to divide by. However many numbers were analysis, there are four states, so four numbers. So we're gonna add up the 9005. 64. 7405 7039 7642. And we end up getting 31,650 and then we're ready to divide that by four. So if we do that, you should get and remember, do the money. So you went around to the nearest two decimal places for money. Since, uh, yeah, $7912.56 is the mean for the Pacific states. And then we're ready to then find the average or the mean for the southwest central States. So those numbers were 6771 plus 6276 plus 6000 567 plus 6000 229. And again, we're gonna add up all four of those numbers and then divide by four. So when we do that, we need to get 25,000 843 on tops. We add first, then we're ready to divide by four. And I remembered around of the nearest two decimal places for money, you end up getting 6000 $460.75.
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