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Asma R.
MBA Student at University of Texas at Dallas
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Marketing
TutorMe
Question:

What are the four P's of marketing?

Asma R.
Answer:

The 4 P's of marketing are: 1. Product – A product can be either a tangible good or an intangible service that fulfills a need or want of consumers. 2. Price – Price will impact profit margins, supply, demand and marketing strategy. 3. Promotion – Promotion looks at the many ways marketing agencies disseminate relevant product information to consumers and differentiate a particular product or service. 4. Place – What are the ideal locations to convert potential clients into actual clients.

Electrical Engineering
TutorMe
Question:

Why are AC systems preferred over DC systems?

Asma R.
Answer:

AC systems are preferred over DC systems for the following reasons: a. It is relatively easy to maintain the voltage of AC electricity for transmission and distribution. b. Plant cost for AC transmission is much lower than the equivalent DC transmission c. AC is produced at the power stations d. When a large fault occurs in a network, it is easier to interrupt in an AC system

Statistics
TutorMe
Question:

What is the minimum proportion of observations in any sample that lie within 2 standard deviations of mean?

Asma R.
Answer:

We use the Chebysheff's Theorem to calculate the answer, i.e the proportion of observations in any sample that lie within k standard deviations of mean is at least 1 - 1/k^2 (where K>1) Therefore, our answer is = 1-1/2^2 = 3/4th of all the observations in any sample will lie within 2 standard deviations of the mean.

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