statistics cheet sheet test 2
- The time for a professor to grade an exam is normally distributed with a mean of 12.6 minutes and a standard deviation of 2.5 minutes. What is the probability that a randomly selected exam will require more than 16 minutes to grade?
a.0.7734 normalcdf(16,1E99,12.6,2.5)
rhsd
BLOCK 11. Types of language teaching approaches -Communicative approach: In CA is very important the social nature of English and interaction. The activities that are used are: problem solving activities (matching, sequencing, identifying…), creative activities (masks, birthday cards…) or interactive activities (interviews, surveys…).-TPR: Total physical response develops listening skills. It involving activity and movement and students can also take up leading roles in activities.-Task based
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NEGATIVE:Sold good is Aluminium. Aluminium factories emit pollution. For each unit of aluminium produced, a certain amount of pollutant enters the atmosphere and poses a health risk for those who breathe air
POSITIVE: The construction of a train station can provide shelter for the homeless when it is raining. If a company develops new technology, such as a database programme, this new technology can be implemented by other firms who will gain a similar boost to productivity.
POSITIVE CONSUMPTION
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Standard deviation: average measure from data and mean (square root of variance).How far the data is on average from the mean.
Solve: Find the variance and take the square root of it.
Coefficient of Variation: standard deviation of two sets of data. Shown as as a percentage and measures the variation side by side with the mean
Solve:: CV = standard deviation/ mean * 100
Counting numbers is discrete
Center and Variability:
Descriptive Measures: a single number thats comes from the sample data
Central
d
Any marketing actions a firm takes today can change consumer’s brand awareness or brand image and have an indirect effect on the success of future marketing activities. For example; the frequent use of temporary price decreases as sales promotions may create or strengthen a “discount” association to the bran, with potentially adverse implications on customer loyalty and responses to future price changes or non-price-oriente marketing communication efforts. Marketers must actively manage brand
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Define Patent. A patent for an invention is the grant of a property rights to the inventor, issued by the U.S Patent and Trademark Office. Generally, the term of a new patent is 20 years from the date on which the application for the patent was filed in the U.S or, in special cases, from the date an earlier related application was filed, subject to the payment of maintenance fees. The right conferred by the patent grant is“the right to exclude others from making, using, ofering for sale, or selling
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