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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data. In statistics this venture is called the “Methodology.” 6. Make sure you break your sample into classes or groups‚ such as males/females‚ or ages‚ or time of day‚ etc. 7. Calculate the mean‚ median‚ and mode for your data as a whole. 8. Now calculate the mean‚ median‚ and mode of each of your classes or groups. 9. Indicate which measure of central tendency best describes your data and why. Then compare your results for each class or group‚ and point out any interesting results or unusual
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and mode. Mean is “a measure of central tendency that offers a general picture of data without inundating one with each of the observations in a data set” (Sekaran‚ p. 396‚ para 3). A more common term for mean is average. The median is “the central item in a group of observations when they are arrayed in ascending or descending order” (Sekaran‚ p. 396‚ para 5). Mode is the “most frequently occurring phenomenon” (Sekaran‚ 396‚ para 6). The following table shows the mean‚ median‚ and mode for
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| The mean is the average of all of the numbers added together and divided by the number of data. The median is the middle number in a data set that is numerically in order. The mode is the number that occurs the most often in a data set. A skewed distribution measures lack of similarity in a bell-shaped graph known as a bell curve. It occurs when data is plotted on the graph based on normal measured traits.
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Activity 2.1.2 Student Response Sheet Part I: Answers Example 1: Prosthetic‚ Inc. and Orthotics and Prosthetics had almost identical profit increases between the years 1998 and 2009. The yaxis on Orthotics and Prosthetics’ graph has been altered to have a larger range than the range used for the yaxis on Prosthetic‚ Inc.’s graph. If the same range was used for both graphs‚ they would look as follows: Example 2: ABC.com presented that the average blood sugar level before meals for Americans is 142 mg/dL
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Statistical Report The Relationships between Location‚ Income‚ and Credit Balance for the customers of AJ Davis Department Store Math 533 Course Project Part A AJ DAVIS DEPARTMENT STORES AJ Davis Department Store Customer Research A. Brief Introduction The department store AJ Davis would like to find out more information about their customers. A sample of 50 credit customers is selected with data collected on the following five variables: 1. LOCATION (Rural‚ Urban‚ Suburban)
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1.a．Mnually calculate the mean‚ median‚ and mode or modes for the following samples: (i) 7‚ 4‚ 6‚ 2‚ 6‚ 7‚ 3‚ 5 (ii) 0‚ -3‚ 5‚ -2‚ -6‚ 4‚ 7‚ 9‚ 4‚ -3‚ 0‚ 2 b. The number of days for which each of 15 office workers of a firm was absent during a one-month period is as sfollows: 0‚ 1‚ 1‚ 3‚ 0‚ 0‚ 2‚ 5‚ 0‚ 1‚ 1‚ 2‚ 0‚ 1‚ 1 Calculate the interquartile range‚ variance and standard deviation of the number of days absent. 2. The number of hours a student spent studying for
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Representation and Summary of data [10/09/12] Histograms * To be able to draw and interpret histograms. * Continuous Data:- * Measured [Rounded off to a particular degree of accuracy] * Time * Length * Speed – Velocity * Mass – Acceleration * Volume * Density * Area * Most suitable for a histogram. The area of a histogram is proportional to its frequency. Area ∞ Frequency
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Measures of Central Tendency 1. What Do You Mean by Mean? a) The mean of the salaries is calculated by adding up each individual salary and dividing it by the seven employees. The mean of the seven salaries is $43‚814.29. The mean compares to the individual salaries because it shows the average of all the salaries together. The employees would use the average to negotiate with Dick for a higher salary‚ because by looking at the average you can see that Dick’s salary is an outlier compared to
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out ‚the gender of the child‚the age of the child and the shoe size of the child. 2‚ 1.1 To see if the hypothesis is right or wrong.: I am going to conduct calculations using average and percentage ‚also I am going to find out the mean‚median and mode of this hypothesis‚I am also going to conduct graphs and charts using excel. ‚I am also going to collect data using a questionnaire ‚on the general public with a large age range of children. 3‚ 2.1‚ - 2.2 Collecting data. The primary data
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