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roadworx
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If I have random variable, P ~ U(1,2), am I correct in thinking that xP ~ U(1,2) also ? (where x is some constant), or does the range change?
Thanks.
Thanks.
EnumaElish said:Since P is U(1, 2), Prob(P < p) = p - 1. Note Prob(P < 1) = 1 - 1 = 0 and Prob(P < 2) = 2 - 1 = 1.
Assume x > 0, then Prob(xP < p) = Prob(P < p/x) = ...
Does this help?
A random variable is a numerical value that is determined by chance. It can take on different values depending on the outcome of a random event or experiment.
A random variable is different from a regular variable because its value is not known or determined beforehand. It is based on the outcome of a random event, while a regular variable is assigned a specific value.
Random variables are used in research to model and analyze random events or experiments. They allow researchers to make predictions and draw conclusions based on probability and statistical analysis.
There are two types of random variables: discrete and continuous. Discrete random variables can only take on a finite or countable number of values, while continuous random variables can take on any value within a given range.
The expected value of a random variable is calculated by multiplying each possible value by its corresponding probability, and then summing all of these products. It represents the average value or outcome that can be expected from the random variable.