Many people go for link purchase to improve page rank. It is considered as black hat seo and crticized by Google. Such technique is considered as manipulation of search results and a violation of Google’s quality guidelines. These guidelines are prime focus of Google’s Penguin update. It’s interesting that there seem to be exceptions to the rule, such as a directory like Best Of The Web, which has users pay for their sites to be considered for links.
1. There is only one telephone in a public booth of a metro station. Following table indicates the distribution of arrival time and duration of calls: Time Between arrivals (minutes) 4 5 6 Probability 0.1 .6 0.3 Call Duration (minutes) 3 4 5 6 Probability 0.14 0.6 0.12 0.14 Simulate for 100/500/1000 times. Conduct 3 such trials. It is proposed to add another telephone to the booth. Justify the proposal based on the waiting time of caller.Generate graphs to support your answer. 2. A baker needs to find out the cookies he need to bake each day. The probability distribution for the cookies customers is as follows: Number of customers/day 7 9 11 14 Probability 0.35 0.30 0.15 0.20 C...
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