Data mining Articals

What’s simple random sampling? Is it possible to sample data instances using a distribution different from the uniform distribution? If so, give an example of a probability distribution of the data instances that is different from uniform (i.e., equal probability).

You must make at least two substantive responses to your classmates’ posts. Respond to these posts in any of the following ways:

· Build on something your classmate said.

· Explain why and how you see things differently.

· Ask a probing or clarifying question.

· Share an insight from having read your classmates’ postings.

· Offer and support an opinion.

· Validate an idea with your own experience.

· Expand on your classmates’ postings.

· Ask for evidence that supports the post.

Discussion Length (word count): At least 150 words

References: At least one peer-reviewed, scholarly journal references.

Reply Post 

When replying to a classmate, use 3 – 5 sentences offering your opinion on what your thoughts on the advantages and disadvantages of their choices.