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If you break a stick 12 inches long in two at a random point what is the expected length of the smaller piece?
Wiki User
∙ 14y ago
the length would be anywhere between 1 and 1/2 and so the expected value is 1/4
Wiki User
∙ 14y ago
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The mean or expected value of the distribution of a discrete random variable is?
30.47
Is the mean of probability distribution is called its expected value?
No. The mean is the expected value of the random variable but you can also have expected values of functions of the random variable. If you define X as the random variable representing the result of a single throw of a fair die, the expected value of X is 3.5, the mean of the probability distribution of X. However, you play a game where you pay someone a certain amount of money for each throw of the die and the other person pays you your "winnings" which depend on the outcome of the throw. The variable, "your winnings", will also have an expected value. As will your opponent's winnings.
How did scientists come up with the length of 1 meter?
A scientist sawed a stick to a random length and called it one metre.
Does a random largely selected sample always give a better estimate of the population than a randomly selected sample?
A larger random sample will always give a better estimate of a population parameter than a smaller random sample.
What does it mean when the standard error value is smaller than the standard deviation?
It simply means that you have a sample with a smaller variation than the population itself. In the case of random sample, it is possible.
What is the meaning of random?
Random means not expected. Something that is unpredictable, has no pattern or objective
Limitation of expected value in decision making?
Expected value of a random variable requires that the random variable can be repeated in experiment indefinitely. If the random variable can only be repeated finite times, e.g. once, there is an inadequacy of the expected value principle for a decision maker.
Is the expected value of a discrete random variable equal to the mean of the random variable?
yes?
The mean or expected value of the distribution of a discrete random variable is?
30.47
How do you win random jackpot on scr888?
buy smaller
What are the disadvantages of random sampling?
used for a smaller population
Is the mean of probability distribution is called its expected value?
No. The mean is the expected value of the random variable but you can also have expected values of functions of the random variable. If you define X as the random variable representing the result of a single throw of a fair die, the expected value of X is 3.5, the mean of the probability distribution of X. However, you play a game where you pay someone a certain amount of money for each throw of the die and the other person pays you your "winnings" which depend on the outcome of the throw. The variable, "your winnings", will also have an expected value. As will your opponent's winnings.
What is Double random length for seamless pipe?
around 12m long
Is the expected value of any random variable just the average of the values?
The expected value is the long-run average value of repetitions of the experiment it represents.
What would you do if a random friend asked you to star in their documentary?
What role are you expected to play. If it is a positive role accept it.
How did scientists come up with the length of 1 meter?
A scientist sawed a stick to a random length and called it one metre.
Suppose a normal random variable has a mean of 72 inches and a standard deviation of 2 inches Suppose the random variable X measures the height of adult males in a certain city One may therefore con?
Suppose a normal random variable has a mean of 72 inches and a standard deviation of 2 inches. Suppose the random variable X measures the height of adult males in a certain city. One may therefore conclude that approximately 84% of the men in this population are shorter than?
