where you may draw two very different conclusions from the same set of data. 2. Quantitative & Categorical Data – Two different types of data. 3. Categorical Graphs – Bar graphs & pie charts. 4. “Center” & “Spread” for Quantitative Data – Mean‚ median‚ standard deviation‚ etc. 5. Quantitative Graphs – DotPlots‚ StemPlots‚ Histograms‚ BoxPlots‚ Ogives. 6. Describing Quantitative Graphs – Shape‚ center‚ spread‚ symmetric vs. skewed‚ etc. 7. Comparative Plots – Graphs comparing two sets of data
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Chapter 23 - The Heart 331 The Heart - Key 1 2 3 What is the name of the central region of the thorax? The central region of the thorax is the mediastinum. About how much of the heart is to the left of the mid-sternal line? Two-thirds of the heart is to the left. Where is the location of the apex of the heart? The apex of the heart is located to the left at the fifth intercostal space. Figure 23.2 11 In reference to Figure 23.2‚ identify #1 - #3. 3 Epicardium 1 Pericardium 2 Pericardial
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ADDITIONAL MATHEMATICS: PROJECT WORK 2013 “Statistics in our daily life.” CONTENTS Introduction Acknowledgement Part 1 Part 2 Part 3 Further exploration Conclusion Reflection INTRODUCTION I‚ along with my fellow classmates‚ had been given a task by our Additional Mathematics teacher‚ which was the Additional Project Work 2013. Statistics is the study of the collection‚ organization‚ analysis‚ interpretation and presentation of data. It
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population‚ which is depicted in Table 1. By looking at average or median age‚ it becomes clearer that there is an increase in the aging population. Over the past 50 years‚ the median age of the world’s population has increased by 2.8 years‚ from 23.6 in 1950 to 26.4 in 2000 (Batini‚ Callen‚ McKibbin 2006). The United Nations estimates median age to rise to 36.8 years in 2050. More developed countries are expected to have an increase in median age from 37.3 years to 45.2 years‚ and lesser developed countries
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observations are scattered. Objectives: * To use summary statistics to describe collection of data. * To use the mean‚ median and mode to describe how data “bunch up” * To use the range‚ variance and standard deviation to describe how data “spread out”. MEASURES OF CENTRL TENDENCY Measures of central tendency include three important tools – mean (average)‚ median and mode. Mean The arithmetic mean is the most common measure of central tendency. For a data set‚ the mean is the sum of the
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cash and accounts receivable divided by its current liabilities. This ratio is a more stringent measure of liquidity than the current ratio in that it excludes inventories and other current assets. Pfizer has a quick ratio of 1.78 while the industry median is 1.21. This shows the company does not rely too much on inventory of other assets to pay for short-term liabilities. The current ratio measures a company’s current assets divided by its current liabilities. This ratio indicates the company’s degree
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$448.2 thousand and the median net worth was $93.1 thousand. Which measure of center do you think is more appropriate? A lot depends on what you are looking for here; the mean net worth is the true average worth across the sample. However‚ the median net takes the extremes out of the worth‚ meaning the very rich and the very poor are less impactful on the number‚ and you will get a better middle of the sample worth. For the sake of publishing reports to the public‚ the median net worth is the better
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ratio of ECY is below the median industry ratio. So the ECY’s current 2.2. 2.3. 2.4. 2.5. 2.6. 2.7. 2.8. 2.9. ratio is negative relative to the industry. This situation indicates that ECY may have more liabilities than assets. Quick ratio 2.2.1. Quick ratio is calculated as current assets minus inventories then divided by total current liabilities. From the chart‚ we can see ECY’s quick ratio is below the median of industry. It means ECY’s inventory is less than the median of industry. Therefore
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cardiovascular system as comprising two distinct networks of arteries and veins. Galen claimed that the liver produced blood that was then distributed to the body in a centrifugal manner‚ whereas air was absorbed from the lung into the pulmonary veins and carried by arteries to the various tissues of the body. Arteries also contained blood. This was an open-ended system in which blood and air simply dissipated at the ends of veins and arteries according to the needs of the local tissue. Blood was not
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Arteries carry blood away form the heart the extremities and organs. They have typical three layer blood vessel wall structure with a thick tunica media. The walls of arteries are highly compliant due to the elastic fibres present. The wall thickness of the arteries varies in based on the proximity to the heart. The elasticity of arteries allows pressure absorption from the left ventricle of the heart as it pumps blood into the arteries. There are two significant types of arteries‚ elastic and muscular
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