Mean, Probability | Engineering Mathematics - Engineering Mathematics PDF Download

Mean, Variance

Mean is average of a given set of data. Let us consider below example

2, 4, 4, 4, 5, 5, 7, 9

These eight data points have the mean (average) of 5:

Mean, Probability | Engineering Mathematics - Engineering Mathematics

Variance is sum of squares of differences between all numbers and means.
Deviation for above example. First, calculate the deviations of each data point from the mean, and square the result of each:

Mean, Probability | Engineering Mathematics - Engineering Mathematics

Mean, Probability | Engineering Mathematics - Engineering Mathematics

The document Mean, Probability | Engineering Mathematics - Engineering Mathematics is a part of the Engineering Mathematics Course Engineering Mathematics.
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FAQs on Mean, Probability - Engineering Mathematics - Engineering Mathematics

1. What is the mean in computer science engineering?
Ans. In computer science engineering, the mean refers to the average value of a set of numbers. It is calculated by summing up all the numbers in the set and dividing the sum by the total count of numbers.
2. How is probability used in computer science engineering?
Ans. Probability plays a crucial role in computer science engineering. It is used to model and analyze uncertainties in various algorithms and systems. Computer scientists use probability theory to design efficient algorithms, analyze the complexity of problems, and make informed decisions based on uncertain data.
3. What are the applications of computer science engineering in probability?
Ans. Computer science engineering utilizes probability in various applications, such as: - Machine Learning: Probability is used in machine learning algorithms to model uncertainties and make predictions based on probabilistic models. - Cryptography: Probability is employed in cryptographic algorithms to assess the security and randomness of encryption schemes. - Network Design: Probability is used to model the behavior of network traffic, enabling engineers to design efficient and reliable communication networks. - Error Detection and Correction: Probability is utilized in error detection and correction techniques to identify and rectify errors in data transmission and storage. - Optimization: Probability is employed in optimization algorithms to find optimal solutions by considering uncertain factors and constraints.
4. How can computer science engineers calculate the probability of an event?
Ans. Computer science engineers calculate the probability of an event by dividing the number of favorable outcomes by the total number of possible outcomes. This is known as the classical probability formula. In more complex scenarios, where events are not equally likely, engineers use techniques such as conditional probability, Bayes' theorem, and probability distributions to calculate probabilities.
5. Can you provide an example of how probability is used in computer science engineering?
Ans. Certainly! One example is the use of probability in internet search engines. Search engines like Google utilize probability models, such as the PageRank algorithm, to rank web pages based on the probability of a user finding relevant information on a particular page. By considering factors like the number of incoming links and the relevance of the content, probability theory helps in determining the most relevant pages to display in search results.
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