Ratio and Proportion • If 2 numbers are in ratio a: b then consider them as ax and bx (where x is the proportionality constant) and apply ax and bx in the given condition of the problem to proceed for answer • Ratio can be applied between 2 units if and only if the same physical quantity is compared • Length : length is correct • Length : density is wrong • Ratio can be made only after the units are compared in the same unit • If two lengths are 1 mile and 1 km respectively then ratio
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respondents. As reflected on the table‚ the male has the larger percentage than the female. Out of 97 respondents‚ 57 or 59% are male while 40 or 41% are female. To illustrate visually the sex profile‚ the graph is presented below. 20 Graph 1 [pic] Gender Profile of the Respondents Table 2 Analytical Skills |Respondents | |S |N |Computed t |Tabular t |Decision
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Creating Graphs 1. Create a Pie Chart for the variable Car – Pull up Graph > Pie Chart and click in the categories variables box so that the list of variables will show up on the left. Now double click on the variable name ‘Car” in the box at the left of the window. Include a title by clicking on the “Labels…” button and typing it in the correct text area (put your name in as the title) and click OK. Click OK again to create graph. Click on the graph and use Ctrl+C to copy and come back here
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Practice Problems for Confidence Intervals X ± Z σ/n ; X ± t s/n ; p ± Z (p(1-p)/n) 1. A press release issued by our university claims that West Chester students study at least as much as the national average for students at four year universities. Across the nation‚ 73 percent of all students at four year universities study at least four hours per week. Seventy percent of one hundred randomly selected West Chester students surveyed claimed to study more than four hours per week.
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Graphs 1 Introduction We have studied one non-linear data structure so far i.e Trees. A graph is another non-linear data structure that is widely used to solve many real-life computing problems. For example‚ we need to use a graph to find out whether two places on a road-map are connected and what is the shortest distance between them. Graphs are used in simulating electrical circuits to find out current flows and voltage drops at various points in the circuit. Graphs are widely used in telephone
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A Study in Determining Confidence Intervals at 95% Charlesatta Johnson PH6014 October 9‚ 2013 Dr. Rodrick Frazier A Study in Determining Confidence Intervals at 95% As hypothesized‚ high cholesterol levels in children can lead to their children being affected with hyperlipidemia. A study is conducted to estimate the mean cholesterol in children between the ages of 2 - 6 years of age. It also attempted to establish a correlation as to the effect family history has on the onset of the disease
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Graphs and Function What is the relation between the graphs and function and how was it applied in the real world? Graphs are frequently used in national magazines and newspaper to present information about things such as the world’s busiest airports (O’Hare in China is first‚ Heathrow in London is sixth)‚ about the advertising-dollar receivers in the United States (newspaper are first‚ radio is fourth) and about NCAA men’s golf team title winner (Yael is first‚ Houston is second). The
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Confidence Intervals have numerous applications for professional activities. Confidence Intervals have a wide use in defining the outcome of a particular question. The use of confidence levels are used commonly in Health‚ Business‚ Politics and Engineering venues. There are three examples that will be recognized as having real world applications regarding confidence intervals. An Empirical Test of the Black-Scholes (BS) Option pricing model exhibited the use of a confidence interval approach.
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Table * Organized collected data and present them in appropriate form. * Construct a frequency distribution table for given set of data. * Compare and interpret statistical tables * Contract graphs appropriate for a given data * Compare and interpret different graphs * Enumerate the importance of presentation data accurately * Communicate data results effectively. 2.) It contains the information and is the essential part of table A. Body
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5. . Over the open interval (0‚ 0.7]‚ at what value of x is the tangent line to f horizontal? A. 0.390 B. 0.555 C. 0.368 D. 0.567 D. 0.195 6. At which x-value over the interval (0‚ 2] does the graph of f have a relative minimum? (refer to f ’ in #5) A. 1.938 B. 1.146 C. 0.368 D. 1.571 E. 0.567 7. At which x-coordinate below does the graph of f (for f ’ defined in #5) change concavity over the interval (0‚ 2]? A. 1.938 B. 1.146
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