Statistics

Define Confidence interval in a very layman manner with example

Question

Confidence interval is something for which you can get N number of definitions, but what really matters is whether you understand the concept or not. Try to take any simple real life example and explain the concept. These are the basic questions ...

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Statistics 55 years 16 Answers 767 views Grand Master

Difference in the formula of variance calculated for population and sample, Why?

Question

If you don't understand the question, then google it. Explore, what is variance, sample, population, etc.. Once you understand the concepts then come back to the question. The question checks your concept of degree of freedom and whether you have understood ...

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Statistics 55 years 18 Answers 1723 views Grand Master

Explain Type 1 error in simple terms

Question

How do you explain Type 1 error in simple terms

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Statistics 55 years 1 Answer 746 views Grand Master

Can we use R2-Sqaure to validate our model?

Question

Can we use R2-Sqaure to validate our model? When does the R2-score metric make sense?

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Statistics 55 years 1 Answer 652 views Member

Which test is used for more than two independent population location parameter?

Question

OPTIONS : - f(ANOVA) -Kruskal Wallis - both

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Statistics 55 years 1 Answer 735 views Member

Statistics Interview Question| What is the relation between Power and Size of a test ?

Question

What is the relation between Power and Size of a biased and unbiased test ?

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Statistics 55 years 1 Answer 747 views Member

Statistics Interview Question| When are Type 1 and Type 2 errors both equal to 0 ?

Question

State a situation/example when both the Type 1 and Type 2 errors, in testing of a hypothesis, are equal to 0.

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Statistics 55 years 1 Answer 770 views Member

Logistic : Regression or Classification

Question

Logistic Regression is a classification technique , then why it is called logistic "REGRESSION" ?

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Statistics 55 years 1 Answer 665 views Member

Accuracy of Linear Regression

Question

How can we improve the accuracy of Linear Regression Model ?

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Statistics 55 years 1 Answer 560 views Member

R square and Adjusted R square in regression

Question

What is the difference between R square and Adjusted R square in Linear Regression?

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Statistics 55 years 1 Answer 563 views Member

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