TERM END EXAMINATIONS,MARCH-2013 BACHELOR OF COMMERCE, YEAR – III ELEMENTARY STASTISTICS Time: 3 hours M.Marks:60 SECTION A Note: - Attempt any 4 questions. All questions carry equal marks. (4 X 5) The answer should be limited upto 200 words. 1) What is statistics? Explain the nature and limitations of statistics? 2) What is frequency distribution? What are the
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 5, 5, 6 Mean of data is 63/50=1.26. Median of data is 1+1/2=1. Mode of data is 0. For the normal distribution of data, there must be * mean = median = mode * symmetry about the center * 50% value less than mean and 50% value greater than mean. The given distribution not even verifying one of the criteria for the normal distribution. Therefore sample
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DISCRIPTIVE ANAYSIS OF VARIABLES KFC KFC: Food, fun & Festivity, this is what KFC is all leading the market since its inception, KFC provides the ultimate chicken meals for a chicken loving nation. Be it colonel sanders secret original recipe chicken or the hot & spicy version, every bite brings a yum on our face. At KFC we can proudly say, “We do chicken right”. Perfecting its secret recipe of 11 herbs and spices in 1939, KFC has come a long way. With over 10,000 outlets in the
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Operational Laws and Mean Value Analysis Nirdosh Bhatnagar 1. Introduction Operational technique can be used to analyse both computer and networking systems. We …rst introduce basics of operational analysis. This technique is then extended to open and closed queueing networks. The closed queueing network considered has single servers at its queueing centers. 2. Operational Analysis Basics The word operational means measurable. The analysis presented in this chapter assumes that the performance
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7 8 8 9 9 9 10 15 19 20 21 2. In the array provided, what is the mode? A. 7 B. 9 C. 10 D. 15 E. Both A and B 3. In the array provided, what is the median? A. 7 B. 9 C. 10 D. 15 E. Both A and B 4. In the array provided, what is the mean? A. 7 B. 9 C. 10 D. 15 E. Both A and B 5. The difference between the smallest and the largest values in a distribution is the _____. A. mean B. median C. mode D. range E. deviation 6. Which of the following is a bar chart arranged
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Central tendency and dispersion Upon performing data analysis using descriptive statistics, skew values and central tendencies, as well as, dispersion of data was visual evident. Central tendency is basically the cluster of data values while dispersion deals with the range of data values and how they are spread out. Additionally, dispersion reflects the amount of variation in the data. In the category of education, the central tendency focused on range of 10 – 12 years at 51 percent and 12 –
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selected Gender and Extrinsic Job Satisfaction. I learned that median and mode had the same answer. I analysis by add up all the Gender for mean I got 1.56, median 2, and mode 2. I also added Extrinsic I got for mean is 5.42, median 5.6, and mode 5.6. Standard deviation and variance are the same square root of gender for mean is 1.25, median 1.41, and mode 1.41. The square root of Extrinsic for mean is 2.33, median 2.37, and mode 2.37. The number are applicable because they were found on the excel 2007
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Mean, median, and mode are differing values that furnish information regarding a set of observations. The mean is used when one desires to determine the average value for data ranked in intervals. The median is used to learn the middle of graded information, and the mode is used to summarize non-numeric data. The mean is equal to the amount of all the data in a set divided by the number of values in that set. It is typically used with continuous figures. The result will probably not be one of the
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Value | Frequency | Frequency % | 1 | 8 | 16.00 | 2 | 7 | 14.00 | 3 | 6 | 12.00 | 4 | 4 | 8.00 | 5 | 4 | 8.00 | 6 | 6 | 12.00 | 7 | 7 | 14.00 | 8 | 8 | 16.00 | Descriptive Statistics: | Size | Mean | 4.5 | Median | 4.5 | Mode | 1,8 | Standard Deviation | 2.525 | Sample Variance | 6.378 | Range | 7 | Minimum | 1 | Maximum | 8 | Sum | 225 | Count | 50 | The mean household size of the customers is given as 4.5.
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Teaching Statistics and Probability is great for promoting problem solving and critical thinking, enhancing communication, developing number sense, and applying computation. As it applies to every day situations and appeals to our sense of fairness, it is very close in nature to inquiry based learning. Children encounter ideas of statistics and probability outside of school every day. The data students see are often represented graphically, statistically, or probabilistically. Weather reports are
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