MathsGee Answers is Zero-Rated (You do not need data to access) on: Telkom | Dimension Data | Rain | MWEB
First time here? Checkout the FAQs!


Network: Global | Joburg Libraries | MOOCs | StartUpTribe | Zimbabwe | Donate

MathsGee is Zero-Rated (You do not need data to access) on: Telkom |Dimension Data | Rain | MWEB

0 like 0 dislike
A coin is tossed 10 times and the results are 2 tails and 8 heads. How will you analyse whether the coin is fair or not? What is the p-value for the same?
in Data Science by Bronze Status (8,080 points) | 478 views

1 Answer

1 like 0 dislike
The distribution of the number of (say) heads is Binomial. The p-value is the probability of obtaining a number of heads that is as extreme or more extreme. You can test (for example) if the probability of the coin yielding heads is different from 1/2. Then the p-value is the probability of getting 1,2,9, or 10 heads (you can also add 3 and 8 if you opt for a non-strict inequality). We reject the hypothesis that the coin is fair if the p-value is too small (i.e. if we have witnessed an event that is highly unlikely given our assumption).
by Diamond (67,402 points)

MathsGee Answers is a global, STEM-focused Q&A platform where you can ask people from all over the world educational questions for improved outcomes.

On MathsGee Answers, you can:

1. Ask questions
2. Answer questions
3. Comment on Answers
4. Vote on Questions and Answers
5. Donate to your favourite users

MathsGee Tools

Math Worksheet Generator

Math Algebra Solver

Trigonometry Simulations

Vectors Simulations

Matrix Arithmetic Simulations

Matrix Transformations Simulations

Quadratic Equations Simulations

Probability & Statistics Simulations

PHET Simulations

Visual Statistics

Interactive Courseware

ZeroEd Search Engine

Article Rewriter Tool

Word Counter Tool

Other Tools

STEM Gender Equality | ZOOM | Slack | eBook