51. The standard deviation of a probability distribution is: A. B. C. always positive the square ...

Question

Question

51. The standard deviation of a probability distribution is: A. B. C. always positive the square of the variance of the distr

business finance

Answer 1

Answer #1

Answer 2

Similar Homework Help Questions

The t distribution is a discrete probability distribution. b) TrueFalseTrue The t distribution tends toward the standard...

The t distribution is a discrete probability distribution. b) TrueFalseTrue The t distribution tends toward the standard normal distribution as the degrees of freedom increase. c) FalseTrueClick for List The t distribution has a greater variance than the standard normal distribution. d) FalseTrueClick for List If T is a random variable with a t distribution, then P(T < 0) = 0.5. e) FalseTrueFalse For the t distribution, the mean and variance are always equal.
Finding the Mean, Variance, and Standard Deviation of a Uniform Distribution Given the probability density function...

Finding the Mean, Variance, and Standard Deviation of a Uniform Distribution Given the probability density function f(x)=1/6 over the interval [4,10] find the - expected value- the mean- the variance- the standard deviation- (I'm using a TI-83 plus to calculate my answers) Expected value:
4) The of a random variable x is equal to the positive square root of the...

4) The of a random variable x is equal to the positive square root of the variance. A) mean (B) standard deviation C) probability distribution D) variance . .. the son why

Consider a normal distribution with mean 25 and standard deviation 5. What is the probability a...

Consider a normal distribution with mean 25 and standard deviation 5. What is the probability a value selected at random from this distribution is greater than 25? (Round your answer to two decimal places.) Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.) μ = 14.9; σ = 3.5 P(10 ≤ x ≤ 26) = Need Help? Read It Assume that x has a...
If the standard deviation of a probability distribution is 9, then the variance is: a. Unknown....

If the standard deviation of a probability distribution is 9, then the variance is: a. Unknown. b. 9. c. 3. d. 81.
a. Consider a normal distribution with mean 20 and standard deviation 4. What is the probability...

a. Consider a normal distribution with mean 20 and standard deviation 4. What is the probability a value selected at random from this distribution is greater than 20? (Round your answer to two decimal places. b. Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.) μ = 14.3; σ = 3.5 P(10 ≤ x ≤ 26) = c. Assume that x has a normal...

4.B. Compute the variance square and Standard Deviation for the POISSON Distribution of: LAMBDA = 2.5...

4.B. Compute the variance square and Standard Deviation for the POISSON Distribution of: LAMBDA = 2.5 , t= 3 hr. and then find P(3) ?
Consider a normal distribution with mean 39 and standard deviation 7. What is the probability a...

Consider a normal distribution with mean 39 and standard deviation 7. What is the probability a value selected at random from this distribution is greater than 39? (Round your answer to two decimal places.)
Consider a normal distribution with mean 35 and standard deviation 5. What is the probability a...

Consider a normal distribution with mean 35 and standard deviation 5. What is the probability a value selected at random from this distribution is greater than 35? (Round your answer to two decimal places.

Find the mean, variance, and standard deviation for the probability distribution

Find the mean, variance, and standard deviation for the probability distribution. (Round your answers to two decimal places.)Pr(x)=x/28 ; x=1,2,3,4,5,6,7meanvariancestandard deviation