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Questions tagged [statistics]

Mathematical statistics is the study of statistics from a mathematical standpoint, using probability theory and other branches of mathematics such as linear algebra and analysis.

11,539 questions with no upvoted or accepted answers
-3 votes
1 answer
40 views

Finding this probability, I need some explanation.

If green and yellow seeds per plants are crossed and $15$ seeds are obtained calculate the probability of getting $(0,1,2,....15)$ green seeds. Green is a dominant and hybrid gene, yellow is a ...
Basheer's user avatar
-3 votes
1 answer
279 views

Probability interval for a cost related to a Poisson random variable.

For a certain section of pine forest, the number of diseased trees per acre, Y, has a poisson distribution with mean of 10. The diseased trees are sprayed with an insecticide at a cost 3 dollars per ...
timmydongy's user avatar
-3 votes
2 answers
986 views

confused about meaning of a expectation of a function

https://en.wikipedia.org/wiki/Bias%E2%80%93variance_tradeoff#Derivation well,in the "Derivation" part of the wiki link. i don't figure out why $E(f)=f$, does it imply that the function $f$ is ...
SDJSK's user avatar
  • 119
-5 votes
1 answer
80 views

How many unique combinations are possible if category contents are limited?

I'm working on a personal project and came across an algorithm problem which stumped me. I need to know whether a user has given my program the correct parameters to create the amount of random ...
Claytone's user avatar

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