In 1970‚ the population Pyramid shows that Oman was LEDC (low economically developed country) due to the high birthrate and low deathrate (triangular pyramid). There are number of reasons for high birthrate at that time. First of all‚ the religious reasons have affected the country to have high birthrate. The Omani culture at that time used to have many children for families so they have a great prestige and standing in society. Secondly‚ because Oman was not very developed at that time‚ the country
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Relative frequency of a category = Frequency of that category Sum of all frequencies Class width = Upper boundary– Lower boundary Class midpoint or mark = Lower limit+ Upper limit/2 Approximate class width=Largest value -mallest value / Number of classes Relative frequency of a class=Frequency of that class/Sum of all frequencies Cumulative relative frequency=Cumulative frequency of a class/Total observations in the data set Mean = Average ‚ Median ‚ Mode Range = Largest value–
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Why Do Trees Change Color? Everyone relates the bright‚ scenic colors of the trees with fall. What most people don’t know is why. For this process‚ also known as photosynthesis to happen it involves three different pigments that give the leaves their color. Trees are autotrophs; this means that they make their own food. The leaves obtain water through their roots‚ but also they need sunlight‚ carbon dioxide‚ and chlorophyll. Chlorophyll is the pigment that gives leaves their green color and makes
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The reason why people resist change. (1) Loss of status or job security in the organization. 失去现在的位置和工作的保障 It is not our nature to make changes that we view as harmful to our current situation. In an organizational setting‚ this means employees‚ peers‚ and managers will resist administrative and technological changes that result in their role being eliminated or reduced. From their perspective‚ your change is harmful to their place in the organization! Forcing the change has its place. This approach
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Introduction In the world today‚ it is evident that people mostly do not resist change‚ but they do resist loss. Making a smoker to quit smoking is a challenge as it revolves around confronting losses. Smoking is a risk that does not have a defined solution. The only known solution is embracing change to reform or cease smoking. Smoking is not easy to stop because of its addictive problems due to the presence of nicotine in cigarettes. Use of cigarettes is the trap‚ which many people are unable to
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school and to all have different and unique identities. Everyone always goes off in their own little groups of people that are all similar. People frequently have to change who they are and their identity’s to be in those groups. We often wonder why other people feel the need to change their identity. Some of the main reasons people change who they are or their identity is because of the way others treat them‚ and so they can fit in with groups of people or be similar to other people. To begin with
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My Genes made me do it! Consider the Genetic Influences on Criminal Behaviour. My Genes made me do it! Consider the Genetic Influences on Criminal Behaviour. A gene is a sequence on DNA that has a specific region on the chromosome‚ which determines a particular characteristic in an organism. For many years it has been thought that there are specific genes responsible for certain behaviour and so there is a gene for criminal behaviour. In the first half of the twentieth century
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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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every 100 machines. Inferential statistics: Using sample data to reach conclusions about the population from which the sample was taken. Statistical inference is the process of using data obtained from a small group of 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
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FREQUENCY POLYGONS W H AT I S A F R E Q U E N C Y P O LY G O N Frequency polygons are a graphical device for understanding the shapes of distributions. They serve the same purpose as histograms‚ but are especially helpful for comparing sets of data. Frequency polygons are also a good choice for displaying cumulative frequency distributions. H O W T O C R E AT E A F R E Q U E N C Y P O LY G O N To create a frequency polygon‚ start just as for histograms‚ by choosing a class interval. Then draw
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