FREQUENCY DISTRIBUTION WHAT IT IS Frequency distributions summarize and compress data by grouping it into classes and recording how many data points fall into each class. That is‚ they show how many observations on a given variable have a particular attribute. For example‚ a survey is taken of 50 people’s favorite color. The frequency distribution might indicate 15 people selected green‚ 12 blue‚ 6 red‚ 7 yellow‚ and 10 purple. Converting these raw numbers into percentages would then provide an
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Zero 0. What do you hope to achieve in this course? I have taken economics courses in the past‚ but was never strong with the math equations. I am excited to improve this weakness of mine. 1. What skills do you bring to the classroom? To your fellow students? Although I was an economics major in undergrad‚ I took many computer classes and as a result am very proficient with computers. I can use these skills when working with classmates as well. 2. How will your classmates help you achieve
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elements (the sample) to make estimates and test hypotheses about the characteristics of a larger group of elements (the population). Predict/forecast‚ make estimates about population behavior based on sample‚ ‚ test hypothesis‚ make decisions Eg 1: TV networks constantly monitor the popularity of their programs by hiring Nielsen and other organizations to sample the preferences of TV viewers. Eg 2: The accounting department of a large firm will select a sample of the invoices to check for accuracy
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strong hold on electrons and are electron takers. Objects at the bottom of the series gain electrons and become negatively charged. The object higher on the list always loses electrons to the objects lower on the list. The Electrostatic Series (Table 1 pg. 275) acetateglasswoolcats fur‚ human haircalcium‚ magnesium‚ leadsilkaluminum‚ zinccottonparaffin waxebonitepolyethylene (plastic)carbon‚ copper‚ nickelrubbersulfurPlatinum‚ goldWeak hold on electrons POSITIVE CHARGE Strong hold on electrons
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1. Assume the resting heart rates for a sample of individuals are normally distributed with a mean of 70 and a standard deviation of 15. Use the 68-95-99 rule to find the following quantities: a. Percentage of rates less than 70 = 50% b. Percentage of rates less than 55 = 16% c. Relative frequency of rates less than 40 = 2.5% d. Percentage of rates less than 85 = 84% e. Relative frequency of rates less than 100 = 97.5% f. Percentage
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GNI is the best measure of a countries development to what extent do you think this is true The Gross national income (GNI) is the total domestic and foreign output claimed by residents of a country‚ consisting of gross domestic product (GDP) plus factor incomes earned by foreign residents‚ minus income earned in the domestic economy by non-residents. GNI is based on ownership‚ and GDP is based on location. The income groupings use GNI per capita since they follow the same methodology used by the
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book Newjack: Guarding Sing Sing‚ found that even though pets were prohibited in Sing Sing‚ the inmates managed to keep animals. One convict kept a cat; another even made a home for a large spider. Pets offered inmates the opportunity to care for something‚ and the two meanings of "care" are responsibility and love-the key building blocks of rehabilitation. Prison disconnects people. Sometimes it disconnects prisoners from criminal networks or no-good friends‚ which is what it’s supposed to do. But
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SHAKESPEARE sillagescritiques.revues.org/2544 Act 3 sc 2 l83-164 1) Who / where / when & possibly why 2) Obvious elt : dramatic irony => 2 levels of reading 3) Lucio / Duke both serve as go-btwn in the play‚ go from one group to another. Both contribute to knitting all different trends in play. 4) Importance of use of words‚ which is all that’s going on in this particular extract 5) Lucio paired with other char‚ all sorts of unlikely combinations in play‚ for eg with Isab at convent. Here
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Allele Frequencies in Populations: Hardy-Weinberg Law Assumptions Already Made (Can’t Control) 1) Population Size 2) Mutation 3) Natural Selection 4) Immigration/emmigration 5) Non-random mate choice Can Control 1) Population Size 2) Natural Selection Control Variable Left side Experimental Variable Right Side Comparisons are most meaningful when there is only ONE difference between populations For this experiment only the population size should be different and everything else should
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Frequency Distribution (A) Introduction 1. Ungrouped data versus grouped data Ungrouped data (Raw data): It is a list of individual observed values of the random variable Grouped data (a frequency distribution): It is a table that displays the data in grouping along with the number of occurrences that fall into each group. 2. The components of a frequency distribution a. Class limits: They identify the inclusive values in a class of a frequency distribution The
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