Probability Distributions

Probability Distributions
For a rectangular or uniform distribution, the value of interval a is 7 and the value of interval b is 8 then the value of mean for the distribution is
1.33
3.33
2.33
4.33
Author: rikazzz Comment
Probability Distributions
The probability distribution having shape of bell and in which the values of mean lies in center of probability distribution is classified as
continuous distribution
normal distribution
discrete distribution
hyper geometric distribution
Author: rikazzz Comment
Probability Distributions
The probability distribution of discrete random variable is classified as
probability mass function
posterior mass function
interior mass function
continuous mass function
Author: rikazzz Comment
Probability Distributions
The class of variable which can accept any value within the upper and lower limit is classified as
posterior random variable
interior random variable
discrete random variable
continuous random variable
Author: rikazzz Comment
Probability Distributions
The standard normal probability distribution has mean equal to 40, whereas the value of random variable x is 80 and the z-statistic is equal to 1.8 then the standard deviation of standard normal probability distribution is
120
80
40
20
Author: rikazzz Comment
Probability Distributions
The formula in which the Poisson probability distribution approaches normal probability distribution with the help of normal variable is written as
x + λ ⁄ square root of λ
x * λ ⁄ square root of x*λ
x – λ ⁄ square root of λ
x + λ ⁄ square root of pqλ
Author: rikazzz Comment
Probability Distributions
If the total number of elements with some specific characteristics is 18 from a population of 40 and the sample is drawn without replacement with the size of 4 then the mean of hyper geometric probability distribution is
4.8
1.8
2.8
3.8
Author: rikazzz Comment
Probability Distributions
The formula of calculating the expected value of random variable x of gamma distribution is as
E(x) = n ⁄ μ
E(x) = pq ⁄ μ
E(x) = μ ⁄ np
E(x) = α ⁄ μ
Author: rikazzz Comment
Probability Distributions
If the value of failure in binomial probability distribution is 0.70 and success is 0.30 and the number of values in distribution are 7 then the moment coefficient of kurtosis is
0.51
0.18
0.28
0.48
Author: rikazzz Comment
Probability Distributions
For the Gamma distribution, if the value of n is equal to 15 and the value of μ is 7 then the expected value for this distribution is
3.14
2.14
4.14
5.14
Author: rikazzz Comment

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