Modelling 2 Week 3: Discrete Random Variables Stephen Bush Department of Mathematical Sciences MM2: Statistics - Week 3 - 1 Random Variables • Reference: Devore § 3.1 – 3.5 • Definitions: • An experiment is any process of obtaining one outcome where the outcome is uncertain. • A random variable is a numerical variable whose value can change from one replicate of the experiment to another. • Sample means and sample standard deviations are random variables • They are different from sample
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0 out of 5 points A fair coin is tossed 10 times. What is the probability that a tail will be observed at least 4 times? Round your answer to four places after the decimal. Answer Selected Answer: .5006 . Question 5 .5 out of 5 points An automotive center keeps tracks of customer complaints received each week. The probability distribution for complaints can be represented as a table or a graph‚ both shown below. The random variable xi represents the number of complaints‚ and
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ASIAN J. EXP. BIOL. SCI. VOL 4 (1) 2013: 61-68 © Society of Applied Sciences ORIGINAL ARTICLE Impact of Gamma Rays on the Seed Germination and Seedling Parameters of Groundnut (Arachis Hypogaea L.) 1* 1 1 1 1 M. Aparna. ‚ Anurag Chaturvedi ‚ M. Sreedhar. ‚ D. Pavan Kumar ‚ 2 3 P. Venu-Babu and R. K. Singhal . Quality Control Laboratory‚ Acharya N.G. Ranga Agricultural University‚ Rajendranagar‚ Hyderabad- 500 030‚ A. P‚ India 2 Nuclear 3Agriculture and Biotechnology
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| |Target group |The 2IT1 class | |Number of participants |Max. 20 persons – 3 groups | |Date |15 April 2011 | |Time
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much younger children) can affect childrenâ€TMs development. They may display frustration‚ aggression‚ anger‚ regression‚ withdrawal and other behavioural problems. If there is a divorce sometimes children may think itâ€TMs their fault that mum and dad are not together any more. They may begin to hate themselves. Physically they may experience a loss in appetite and insomnia. They may not be able to concentrate in school and it may become challenging for them as they may be suddenly expected to become
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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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Teaching Assistant Course level 3 Question 1 Discuss five factors that may affect number skills development. Number skills development is widely viewed as necessities for lifelong learning and the development of success among individuals‚ families‚ communities and even nations. Decisions in life are so often based on numerical information: to make the best choices‚ we need to be numerical. Below‚ are five factors that may affect number skills development: National and Community factors Children’s
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objective is to study what kinds of factors affect the buying behaviour of both young (20 to 35 years old) and middle-aged (40 to 60 years old) women and then compare the findings from both groups. Furthermore‚ the aim is to discover what kind of attitudes Finnish women have towards facial skin care products containing natural ingredients. The objective is to also study the extent to which the using of natural ingredients in facial skin care products affects the buying behaviour of Finnish women. The
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Factors affecting seed and seedling vigour Seed vigour is a term encompassing the sum total of those properties of the seed that determine the potential performance of the seed or seed lot during germination and seedling emergence (Perry‚ 1978). Rapid and uniform germination are among the properties of vigorous seeds (Argerish & Bradford‚ 1989). Low vigour adversely affects such factors as optimal emergence‚ stress resistance and uniform growth of emergent seedlings (Patrick et al‚ 2000) and is
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Essay #3: The Seeds of Independence Revolutions are like plants. If the seeds are planted and nurtured‚ the plants will grow. Yet‚ if the plants aren’t taken care of‚ they won’t survive. The seeds of independence that grew into the American Revolution were: the early settlers of America learned how to survive on their own‚ they learned how to thrive and become wealthy‚ and then learned that Britain was taking advantage of them. A comparison of the aspects of the American Revolution‚ which allowed
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