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Standard deviation and variance
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∙ 12y ago
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If the mean of a symmetric distribution is 130 which of these values could be the median of the distribution?
If it is a symmetric distribution, the median must be 130.
When the mean of a distribution of scores of measures is higher than the median the distribution would be?
The distribution is skewed to the right.
Is the Mean for distribution of means less than population mean?
No.
Is Mean is more sensitive to skewness than the median?
If the distribution is positively skewed , then the mean will always be the highest estimate of central tendency and the mode will always be the lowest estimate of central tendency (If it is a uni-modal distribution). If the distribution is negatively skewed then mean will always be the lowest estimate of central tendency and the mode will be the highest estimate of central tendency. In both positive and negative skewed distribution the median will always be between the mean and the mode. If a distribution is less symmetrical and more skewed, you are better of using the median over the mean.
What is standarizing variable?
An ordinary variable is standardised by taking a linear transformation of it such that the new variable has standard properties. For example, if X is a Gaussian (Normal) variable with mean mu and standard deviation sigma, then Z = (X - mu)/sigma has a Normal distribution with mean 0 and SD = 1: it has been standardised.
The mean of a symmetrical distribution is 40What is its median?
for symmetrical distributions your mean equals the median. that is one of the properties of the symmetrical distribution.
State the properties of position distribution?
Properties of possion distribution
What properties distinguishes standard normal distribution from other normal distribution?
The normal distribution can have any real number as mean and any positive number as variance. The mean of the standard normal distribution is 0 and its variance is 1.
What are the three properties of a binomial distribution?
1.nothing 2.nothing 3.nothing
What are the properties of poisson distribution?
It is a discrete distribution in which the men and variance have the same value.
What is the perfect standard normal distribution?
The standard normal distribution is a subset of a normal distribution. It has the properties of mean equal to zero and a standard deviation equal to one. There is only one standard normal distribution and no others so it could be considered the "perfect" one.
Given a Poisson distribution with mean equals 2 Find P x5?
Given a Poisson distribution with mean = 2. Find P(X < 5)
A uniform distribution ranges from values 31 to 53. Calculate the mean of the distribution?
The mean of a continuous uniform distribution between bounds a and b has a simple formula: μ=a+b2 μ = a + b 2 . (31+ 53 )/2 = 84/2 = 42
The properties of chi-square distribution?
it has reproductive property
What are the 3 properties of distribution in geography?
density, concentration, pattern
What is the Difference between normal and gaussian distribution?
Actually the normal distribution is the sub form of Gaussian distribution.Gaussian distribution have 2 parameters, mean and variance.When there is zero mean and unit variance the Gaussian distribution becomes normal other wise it is pronounced as Gaussian.Wrong! The standard normal distribution has mean 0 and variance 1, but a normal distribution is the same as the Gaussiand, and can have any mean and variance. Google stackexcange "what-is-the-difference-between-a-normal-and-a-gaussian-distribution"
What does 2deep rule mean?
The "2-deep" rule means that a building should have only the main distribution and the intermediate distribution that feeds the horizontal distribution to the work area.
