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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1. In a poll‚ respondents were asked whether they had ever been in a car accident. 157 respondents indicated that they had been in a car accident and 117 respondents said that they had not been in a car accident. If one of these respondents is randomly selected‚ what is the probability of getting someone who has been in a car accident? 157+117=274/157=1.74 2. The data set represents the income levels of the members of a country club. Find the probability that a randomly selected member earns
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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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Analyzing and Interpreting Data QNT/351 – Quantitative Analysis for Business Mark Alsakka September 22‚ 2014 Analyzing and Interpreting Data Introduction A nationwide company‚ Ballard Integrated Managed Services (BIMS) contracts with large organizations that prefer to focus on their own core competencies and lease support functions to outside vendors. Ballard Integrated Managed Services (BIMS) distinguishes itself in this highly competitive industry by combining several services: housekeeping
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INTERNACIONAL Entry Modes • Ins%tu%onal arrangement by which a firm gets its products‚ technologies‚ human skill‚ or other resources into a market. • Even big MNE’s don’t use a single entry mode. These companies adapt their strategies to use different entry modes. ADMINISTRACIÓN INTERNACIONAL
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after the other without replacement. Find the probability of choosing. (a) One red‚ one black and one red marble (In that oder) (b) Two black marbles (c) At least two black marbles (d) At most two black marbles 4. Find the mean‚ median and mode of the set of numbers 11‚ 9‚ 6‚ 4‚ 3‚ 12‚ 1‚ 6‚ 5 5. The masses‚ in kg to the nearest kg of 40 people axes follows: 59‚ 54‚ 51‚ 56‚ 59‚ 61‚ 60‚ 61‚ 59‚ 58 62‚ 61‚ 63‚ 64‚ 58‚ 57‚ 56‚ 60‚ 62‚ 60 61‚ 65‚ 58‚ 57‚ 54‚ 52‚
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(60 Marks) Answer All Questions 6 X 10 = 60 Marks 1. Prove that the intersection of any two subgroups of a group is a group. 2. Prove that the sum of the degrees of the points of a graph G is twice the number of lines. 3. Find the mean‚ median and mode for the following: Mid value Frequency 15 2 20 22 25 19 30 14 n+1 35 3 40 4 45 6 50 1 55 1 4. Prove that nC r + nCr-1 = Cr 5. If birth to a male child and birth to a female child are equiprobable‚ what is the probability that at least one of
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