Discrete Random Variables: Homework Exercise 1 Complete the PDF and answer the questions. |X |P(X = x) |X(P(X = x) | |0 |0.3 | | |1 |0.2 | | |2 | | | |3 |0.4 | | a. Find the probability that X = 2. b. Find the expected value. Exercise 2 Suppose that you are offered the following “deal.” You roll a die. If you
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Vice President of Marketing for Dysk Compyer‚ Inc must decide whether to introduce a mid-priced 2 version of the firm’s DC6900 minicomputer product line-the DC6900-X minicomputer. The DC6900-X would sell for $ 3900‚ 3 with unit variable costs of $ 1‚800. Projections made by an independent marketing research firm indicate that the DC6900-X 4 would achieve a sales volume of 500‚000 units next year‚ in its first year of commercialization. One-half of the first year’s
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Variables Conceptual Definition Operational Definition Institute education power point at annual competencies on CAUTI tool Education sessions‚ data collection forms with instructions and diagrams‚ and competency checks after training are required to achieve the level of understanding for this study (Blodgett et. al.‚ 2014). Enrollment‚ participation‚ and posttest competency to ensure proficiency of risks and complications of CAUTIs and prevention tool CAUTI rates six months prior to the tool CAUTI
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diagram made by the given data‚ it is noted that as the disposable income increases the annual sales also increases. [pic] ➢ Again‚ We know that the coefficient correlation is‚ r = [pic][pic] Here‚ r = [pic] = [pic] = 0.70 Therefore‚ there is a strong positive correlation between the disposable income and the annual sales. ➢ The regression coefficient is 0.193. That means sales will increase by $0.193 if disposable income increase by $1.00.
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through by measuring the changes in the selected variables. The Variables that we selected were stem length‚ root length‚ the amount of leaves that grew on a plant and the overall size of the plant measured in height. For this experiment‚ we had three test groups‚ the first two groups had five seeds and the third group has 10 seeds. The reason for that is because we introduce the third group to interspecific competition. We wanted to find out if variables such as competition will have an effect on
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beginning of my university life‚ I have to register every semester for the courses that I would be pursuing. In addition‚ at secondary school level everything was handed out to me; while at the university I have to collect my information for different courses. I believe that secondary school was easier because if I did not understand a topic‚ teachers were easily accessed. If I do not understand a topic at university I have to wait until the tutorial or office hours. I easily interacted with
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THE MOMENTS OF A RANDOM VARIABLE Definition: Let X be a rv with the range space Rx and let c be any known constant. Then the kth moment of X about the constant c is defined as Mk (X) = E[ (X c)k ]. (12) In the field of statistics only 2 values of c are of interest: c = 0 and c = . Moments about c = 0 are called origin moments and are denoted by k‚ i.e.‚ k = E(Xk )‚ where c = 0 has been inserted into equation (12). Moments about the
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Activity 2: Cultural Variables in Communication Dimensions of national cultures Power distance index (PDI): "Power distance is the extent to which the less powerful members of organizations and institutions (like the family) accept and expect that power is distributed unequally." Cultures that endorse low power distance expect and accept power relations that are more consultative or democratic. Individualism (IDV) vs. collectivism: "The degree to which individuals are integrated into groups". In
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I have completed the Lotus of Control assessment and found out I am internal in which I believe to be correct. There is a positive side to my type of control. In reading‚ I found that internal orientation get better paid jobs‚ and are more achievement orientated. However‚ psychologically internals can be unhealthy and unstable. They have the tendency to want to control everything. They need a circle of influence in order to experience success. External orientation can lead easy-going‚ relaxed
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commonly presented as a warm up game helping the group members to get to know each other. They often focus on sharing personal information such as names‚ hobbies‚ etc. As a teacher/tutor it is important to establish ground rules with the learners‚ a method to use to do this would be to include the group as a whole to avoid dictating your own ground rules as not all of your learners may agree with one set of rules that may make them feel uncomfortable in their learning environment. A way to create ground
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