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Results tagged with self-study
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user 139605
A routine exercise designed to test one's knowledge; often from a textbook, course, or test used for a class or self-study. This community's policy is to "provide helpful hints" for such questions rather than complete answers.
1
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Exercise help: Asteroid impacts on the Earth modelled with a Poisson distribution
You have a mean of 1 impact every 500 000 years.
Let's study the number of impacts $X$ in the next 500 000 years: $X\sim\text{Pois}(\lambda)$ with $\lambda = 1$. $$P(X>1) = 1-P(X=1)-P(X=0)$$ Now repl …
- 394
0
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Accepted
Testing whether two categorical variables have identical coefficients
When I read "the same coefficients" I'm thinking of comparing their weights in a linear regression. What if you changed these categorical variables to dummy variables (since they're binary), applied a …
- 394