Explain a sampling method that could be used in this case study: First of all‚ there are a few options for sampling methods in this case study of how the relief workers at disaster sites experience and cope with issues that surface. Considering that at the disaster sites “the medical teams are always over-worked‚ equipment is always misplaced and it is hard to deliverer food and medicine as the infrastructure is often broken down because of earthquakes” (line 7). The subjects of the
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light energy from the sun to make their own food (photosynthesise). Sampling plants 1. RANDOM SAMPLING Random sampling is usually carried out when the area under study is fairly uniform‚ very large‚ and or there is limited time available. When using random sampling techniques‚ large numbers of samples/records are taken from different positions within the habitat. A quadrat frame is most often used for this type of sampling. The frame is placed on the ground (or on whatever is being investigated)
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This chapter covers Ecology and‚ as such‚ has a vocabulary all its own – which is often examined. Environment: All the organisms (biotic) and the conditions (abiotic) which exist in an area Abiotic factors: all the non-living factors in an environment‚ such as rainfall‚ temperature‚ soil. Biotic factors: All the living organisms in an area – such as producers‚ predators and parasites. Population: All the members of one species living in an area Community: The total of all the populations living in
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cutting a deck of cards for $1‚000. What is the probability that the card for the gambler will be the following? a. A face card – there are 12 face cards in a deck of 52 cards. The probability would be 12/52 b. A queen – there are 4 queens in a deck‚ so the probability would be 4/52 c. A Spade - There are 13 cards of each suit so the probability is 13/52 or ¼. d. A jack of spades - There is only 1 jack of spades in a deck‚ so the probability would be 1/52 2. The employees in the textile
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2. SEED SAMPLING RL. AGRA w.4.L Seed sampling is aimed at obtaining a sample of the required size and consisting of the same components as the whole lot of seeds. The quantity of seed tested in the laboratory is small‚ compared with the size of the seed lot which it is intended to represent. No matter how accurately the laboratory work is done‚ the results can only show the quality of the sample submitted for analysis. Consequently. every effort must be made to ensure that the sample sent to
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Application of sampling distribution Joe Greene‚ a new manager at Pilgrim Bank wants to better understand profitability data for bank’s customers. Joe is able to obtain a random sample of 31‚634 customers on the following variables – Profitability (in $‚ for the most recent completed year‚ i.e. 2006)‚ whether or not the customer uses the online banking channel‚ customer tenure‚ age and income where available‚ as well as the customer’s residential area. Descriptive statistics for Profits indicates
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Types of Sampling In applications: Probability Sampling: Simple Random Sampling‚ Stratified Random Sampling‚ Multi-Stage Sampling * What is each and how is it done? * How do we decide which to use? * How do we analyze the results differently depending on the type of sampling? Non-probability Sampling: Why don’t we use non-probability sampling schemes? Two reasons: * We can’t use the mathematics of probability to analyze the results. * In general‚ we can’t count on a non-probability
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is the probability that both outcomes are heads? Explain. Ans. P(H) = 1/2 Probability of 2 heads = 1/2 x 1/2 = 1/4 Q.2 Suppose that 25% of the population in a given area is exposed to a television commercial on Ford automobiles‚ and 34% is exposed to Ford’s radio advertisements. Also‚ it is known that 10 % of the population is exposed to both means of advertising. If a person is randomly chose out of the entire population on this area‚ what is the probability that he
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EPGDIB 2014-16 Business statistics class exercise 1 Business application problems of probability Q1)Arthur Anderson enterprise group /National small business united ‚Washington conducted a national survey of small business owners to determine the challenges for growth for their businesses. The top challenge selected by 46% of the small business owners was the economy. A close second was finding qualified workers (37%) .Suppose 15% of the small
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Introduction The word Probability derives from probity‚ a measure of the authority of a witness in a legal case in Europe‚ and often correlated with the witness ’s nobility. In a sense‚ this differs much from the modern meaning of probability‚ which‚ in contrast‚ is used as a measure of the weight of empirical evidence‚ and is arrived at from inductive reasoning and statistical inference. A short history of Probability Theory............ The branch of mathematics known as probability theory was inspired
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