for investigating the relationship between two quantitative‚ continuous variables‚ for example‚ age and blood pressure. Pearson’s correlation coefficient (r) is a measure of the strength of the association between the two variables. The nearer the scatter of points is to a straight line‚ the higher the strength of association between the variables. Also‚ it does not matter what measurement units are used (URL1) Spearman’s rank order correlation coefficient
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below. Be advised in each formula‚ X denotes the number of patients in a month. (a) Least-squares regression method: Total monthly administrative cost = $2‚671 + $7.81X (b) High-low method: Total monthly administrative cost = $1‚100 + $10X (c) Scatter Diagram and Visual-fit method: Total monthly administrative cost =
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me about 3.14. Using these steps I found the percentage error for all of the objects measured. The next step was to graph the results. I was able to do this very easily with spreadsheet. I typed in all of my data and the computer gave me a nice scatter block graph. I also made a graph by hand. I set up the scale by taking the number of blocks up the side of my graph and dividing them by the number of blocks across. I placed my points on my hand drawn graph.
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space). If observations are made on some phenomenon throughout time‚ it is most sensible to display the data in the order in which they arose‚ particularly since successive observations will probably be dependent. Time series are best displayed in a scatter plot. The series value X is plotted on the vertical axis and time t on the
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Then we can use the empirical rule to examine the variability. Usually in this bell-shaped data set‚ we can calculate the mean the standard deviation. The mean means the average value of this set of data. The standard deviation means the average scatter around the mean. If we allow[pic]to represents the mean and[pic]to represents the standard deviation. Then we can say 68% of the data are within[pic]‚ 95% of the data are within[pic]‚ 99.7% of the data are within[pic]. [pic] The picture gives
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Ultra Thin Cloak Can Match Any Background! In the Movie Predator there was an Alien that would uses a Cloaking Device that would hide the Alien in Plain Sight‚ But the effect is far from Perfect‚ due to its attempt to conceal itself is Thwarted from the distortion of Light bending around it. Now‚ Researchers built an Ultrathin “Invisibility Cloak” that Gets around the Problem of Light Bending by turning objects into Flat‚ Perfect mirrors. Invisibility Cloaks are Designed to bend light around an
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Imagine you were a young Aztec person trying to decide whether to stick with your religion or convert to christianity. The Aztec and spanish had many differences and similarities in the way that they practiced religion. Both religions had different ways that they celebrated gods sacrifice and religious leaders. One of the similarities that the Aztec and spanish had was that they both had gods. The Aztec had many gods and the spanish had one god. Huitzilopochtli‚ the Aztecs favorite god was the
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be to remain trapped. I am the sky‚ the limit of me. Surrounding a cave of darkness is a lining of light. A light not yet bright because it is still gaining momentum‚ so that it can eventually‚ hopefully expel all the darkness. But a gentle wind scatters the light so that the exterior of the cave is lit only by a few candles dotted beyond. A puff of smoke
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number with the same stem together. MIDTERM EXAMSCORES STEM LEAF 5 3 4 6 9 7 4 9 3 8 2.44 The following is a set of data from a sample of n= 11 items: X: 7 5 8 3 6 0 2 4 9 5 8 Y: 1 5 4 9 8 0 6 2 7 5 4 a. Construct a scatter plot. Show your work a. Is there a relationship between X and Y? Explain As all the points are scattered over the graph area and are not following a particular pattern we can conclude that there is no relationship between X and Y. 2.16 The following
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In William Shakespeare’s Macbeth‚ the prophecy of three witches drives the noble Thane’s ambition beyond that of morality. His relationships with others‚ his dignity‚ and his sense of self-worth are all sacrificed for the title of King. The witches’ prophecy inflates Macbeth’s ambition and ego‚ causing him to take destiny into his own hands. Happiness‚ however‚ did not foresee his gain and eventually ruin was all that found him. At the beginning of the play Macbeth was a dedicated soldier for Scotland
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