20 8 8 Unweighted High School GPA 3.675 3.8 3.8 4.0 3.9 3.5 3.5 3.5 3.5 3.9 4.0 4.0 3.8 3.9 3.8 3.75 1 9 14 18 15 10 11 12 11 13 15 11 12 12 Single Variable Analysis (Table 2) Analysis Average Median Mode Standard Deviation Range Hours Dancing Per Week 11.84 11 8, 11, 12 4.377 18.5 3.0 4.0 3.8 3.5 3.7 3.8 3.8 3.75 3.5 3.875 4.0 3.8 3.75 Unweighted GPA 3.7465 3.8 3.8 0.2168 1.0 The most notable parts of th
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Examples: Mean, median and mode 8.2.1 The Arithmetic Mean This is commonly known as the average. An ordinary average is one which is obtained by simply adding all the values observed, then dividing he sum by the number of values added. WEIGHTED ARITHMETIC - Another type of average. - obtained by first multiplying each observed value by a corresponding assigned weight before summing up the products then dividing the sum of he weights. In both instances, the arithmetic mean was computed
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times gives a population. The block’s dimensions (length, width, height) were measured 20 times each. This gives a sample for each dimension. From the population and samples, a histogram can be made of the data. Additionally, from these mean, mode, median, and standard deviation can be calculated. Lastly, the error and error propagation must be included because there is human and instrumental error. II. Experimental: This
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one person said radio, another one said by chance. Recommendation: Instead spending on radio, Crown should get more agents, as a lot of students hear about Crown by them. Q2. How many new friends have you made at Crown? The distribution is Bimodel, mode for female is 5, male is 10; Range of female is 19, male is 27. Recommedation: female should more active to make friends. Q3. What is the main reason you decided to study at Crown? The pie chart shows that 25% for uni, 27% fast quals, 12% subject
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following is a correct interpretation of the interval values? With 95% confidence we can say that …. a. for each one point increase in GPA, the average starting salary is 25,000 with a margin of error of ±2,000. b. I haven't the foggiest idea what this means. (This might be true, but this answer will still be counted wrong.) c. when the starting salary is zero, a student’s GPA will be between $25,000. d. when GPA is zero, the average starting salary increases by 25,000 with a margin of error of ±2,000
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Purpose of the survey The purpose of this survey instrument is to determine consumer perceptions of cell phone providers. Ultimately, the data will be used to determine potential positioning strategies for companies. Summary of Results The pretest of the survey indicated the need for several changes. First, there were a few changes that needed to be made for the survey. First, the ten point-scale was simplified to three points. Minor typographical errors were corrected, and questions that appeared
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25066 Highest = 138114 Mean = 3,667,015/50 = 73,340.3 Median = 73341+72069 = 145,410/2 = 72,705 Mode = ∅ SD Dev = 24,898.715 (for sample) SD Dev = 24,648.47 (for population) Variance = 619,946,014.05 N = 50 The least amount of miles in the sample is 25066 and the highest is 138114. The average amount of miles is 73340 in the sample of 50. The number amount of miles were redundant. Standard Variation expresses how much members of a group differs from the mean. ( σ2 =2(x-π)2/N is
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decision making by summarizing data using representative values. (table w/ info summarize) b) analyse the results to draw valid conclusions in a business context c) analyse data using measures of dispersion to inform a given business scenario (median, mode, standard deviation…) d) explain how quartiles, percentiles and the correlation coefficient are used to draw useful conclusions in a business context 3 a) produce graphs using spreadsheets and
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4040 Statistics November 2005 CONTENTS STATISTICS........................................................................................................................ 1 GCE Ordinary Level ........................................................................................................................................ 1 Paper 4040/01 Paper 1 ................................................................................................................................. 1 Paper 4040/02 Paper
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results. Figure - 3 Wireless Security Choosing the right security is imperative when setting up network connections. Linksys router supports four of the most commonly used wireless security modes which you can choose from: WEP, WPA Personal, WPA2 Personal, and WPA2/WPA Mixed Mode. Here’s a table that best compares the different security types according to Linksys. Security | Rank | Number of
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