14. If x has the probability distribution f(x) = 12x for x = 1‚2‚3‚…‚ show that E(2X) does not exist. This is famous Petersburg paradox‚ according to which a player’s expectation is infinite (does not exist) if he is to receive 2x dollars when‚ in a series of flips of a balanced coin‚ the first head appears on the xth flip. 17. The manager of a bakery knows that the number of chocolate cakes he can sell on any given day is a random variable having the probability distribution f(x) = 16 for x =
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1.1 INTRODUCTION Chemical bonding – the force of attraction between the two atoms Valence electron – the outer most shell electrons There are three types of chemical bonding i. Ionic bond: ________________________________________ ii. Covalent bond: _____________________________________ iii. Dative Covalent bond: _______________________________ 1.1.1 LEWIS DOT SYMBOL A shorthand to represent the valence electron of an atom. The element symbol
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possible size of our error if we estimate the mean height of all college students to be 174.5? 3. How large a sample is needed in #1 above is we wish to be 95% confident that our sample mean will be within 0.3 dl of the true mean? 4. A random sample of 1000 recorded deaths in the United States during the past year showed an average life span of 71.8 years. Assume a standard deviation of 8.9 years. Find a 95% confidence interval for the actual average life span.
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CHAPTER 4 – SENSATION AND PERCEPTION I. SENSORY AWARENESS * Sensation is the awareness or a mental process which is aroused due to the stimulation of the senses. * The activation of a sense organ using physical energy that processes the receiving of stimulus from the external environment. A. Stimulus – anything that arouses a sense organ to activity. B. Receptor organs – a highly specialized part of the body selectively sensitive to a definite stimulus. C. Sensory receptors
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Chapter 4: The Bonds of Empire‚ 1660-1750 A. Rebellion and War‚ 1660-1713 The Restoration (1660) did not resolve England’s political conflicts within colonies. a. Royal Centralization‚ 1660-1688 1. Restoration monarchs had little use for representative government. Proprietor of New York (future James II) forbade the NY assembly (lower legislative chamber) to meet. 2. Massachusetts persisted in self-government‚ insisting voting rights on property ownership rather than church membership. In 1661
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companies. The file ex01 57.txt contains the real (that is‚ adjusted for the changing buying power of the dollar) returns on the S&P 500 for the years from 1971 to 2003. (a) Make a histogram of the real returns. Describe the shape of the distribution. Answer) The Histogram for the real Returns‚ of Standard and Poor’s stock Index can be plotted using the following “R” commands: >table table Please refer to the following screenshot: Once the above command is executed‚ we can attach the table “table”
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Howard Zinn A People’s History of the United States Chapter Four Summary Chapter four of A People’s History of the United States‚ by Howard Zinn is about how Britain’s aggressiveness in government allows their tightening on the colonies. Because of their need for raw materials to balance their economy‚ their control over the colonies becomes stronger in order to obtain these raw materials. The colonists perform a series of rebellions in order to overthrow this British rule. To lead these
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| Statistics 101 Report | The Kentucky Milk Case Study | | | | Preliminary Analysis 2a) Figure 1: X as a Data Object X is a data frame as derived from the program R shown above in Figure 1. There are 274 observations of 11 variables. The number of observations is obtained from the number of rows while the number of variables is obtained from the number of columns. 2b) Figure 2: Creating a sub-data frame from X Figure 3:Sub-data frame from X Figure 2 shows a screenshot
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Discrete and Continuous Probability All probability distributions can be categorized as discrete probability distributions or as continuous probability distributions (stattrek.com). A random variable is represented by “x” and it is the result of the discrete or continuous probability. A discrete probability is a random variable that can either be a finite or infinite of countable numbers. For example‚ the number of people who are online at the same time taking a statistics class at CTU on a given
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Week 4 Exercises Chapter 5 – Section 1. Question 5 To perform a certain type of blood analysis‚ lab technicians must perform two procedures. The first procedure requires either one or two separate steps‚ and the second procedure requires either one‚ two‚ or three steps. a. List the experimental outcomes associated with performing the blood analysis. Answer: There are two procedures that a lab technician must perform. The first procedure requires either one or two separate steps‚ which could be named
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