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Earn +20 ptsQ: When distribution has zero variance?
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Which distribution function has equal mean and variance?
The exponential distribution and the Poisson distribution.
What is the variance for the uniform random variable?
the variance of the uniform distribution is (a+b)/12
Does a leptokurtic distribution have a larger variance than Mesokurtic distribution?
yes
What is the different between standard normal distribution and normal distribution?
A normal distribution can have any value for its mean and any positive value for its variance. A standard normal distribution has mean 0 and variance 1.
What is the shape of a z-score distribution?
The standard normal distribution or the Gaussian distribution with mean 0 and variance 1.
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