Statistics: • Science of gathering‚ analyzing‚ interpreting‚ and presenting data • Measurement taken on a sample • Type of distribution being used to analyze data Descriptive statistics: Using data gathered on a group to describe or reach conclusions about that same group only. Descriptive statistics are the tabular‚ graphical‚ and numerical methods used to summarize data. Collect‚ organize‚ summarize‚ display‚ analyze Eg: According to Consumer Reports‚ General Electric washing machine
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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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price | | | | | | | | | | | | Boom | | 5 | 195 | | 150.00% | | | | | | | | | | Normal economy | 2 | 100 | | 27.50% | | | | | | | | | | Recession | | 0 | 0 | | -100.00% | | | | | | | | | | | | | | | | | | | | | | | | | The company goes out of business if a recession hits. Calculate the expected rate of return and standard deviation of return to Learning Tower of Pita shareholders. Assume for simplicity that the three possible states
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SECTION 2: TIME VALUE OF MONEY Decision problems in business usually involve a decision over whether to accept one alternative over another‚ or whether to implement a plan or not. In most cases‚ the effects of these decisions are felt in the future. Examples: Expand into a new market (geographical‚ consumer segment‚ etc.) or not? Now or later? Outsource production or keep it in-house? Grow organically or acquire a competitor? Or don’t grow at all? Purchase shares in Microsoft
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schools during sex education classes. The side for condom distribution argues that condoms should be distributed because they protect against sexually transmitted diseases (STDs). While the side against condom distribution says that it is immoral and promotes teenage sex. Condom distribution is unethical and should be stopped because it gives teens mixed messages about having sex‚ which they are not emotionally mature enough to handle yet and condones premarital sex. Condom distribution needs to end because it makes teens think that it’s normal to have
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SAMPLING DISTRIBUTIONS |6.1 POPULATION AND SAMPLING DISTRIBUTION | |6.1.1 Population Distribution | Suppose there are only five students in an advanced statistics class and the midterm scores of these five students are: 70 78 80 80 95 Let x denote the score
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Probability distribution Definition with example: The total set of all the probabilities of a random variable to attain all the possible values. Let me give an example. We toss a coin 3 times and try to find what the probability of obtaining head is? Here the event of getting head is known as the random variable. Now what are the possible values of the random variable‚ i.e. what is the possible number of times that head might occur? It is 0 (head never occurs)‚ 1 (head occurs once out of 2 tosses)
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2.3. The Chi-Square Distribution One of the most important special cases of the gamma distribution is the chi-square distribution because the sum of the squares of independent normal random variables with mean zero and standard deviation one has a chi-square distribution. This section collects some basic properties of chi-square random variables‚ all of which are well known; see Hogg and Tanis [6]. A random variable X has a chi-square distribution with n degrees of freedom if it is a gamma
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IIUM Students’ perception towards the efficiency of zakat management: Distribution in Malaysia Haron bin Rashid International Islamic University Malaysia 1 Abstract This paper about the study of IIUM Students’ perception towards the efficiency of zakat management: distribution in Malaysia. All subjects were selected from International Islamic University Malaysia (IIUM) and the data were collected using the sampling technique used for the selection of these students that were chosen randomly
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The process of making goods available to the consumer needs effective channel of distribution. Therefore‚ the path taken by the goods in its movement is termed as channel of distribution. The goods may be sent to the consumer directly or indirectly through middlemen. The channel of distribution may be classified as: Selling through direct channels This is the oldest‚ shorter and the simple channel of distribution. The producer sells the product directly without involvement of any middle man.
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