Compute the mean , variance and standard deviation of the sampling distribution taken from the following populations. When 25 numbers are drawn with replacement from a jar containing 1, 3, 5 and 6.
Compute the mean , variance and standard deviation of the sampling distribution taken from the following populations. When 25 numbers are drawn with replacement from a jar containing 1, 3, 5 and 6.
Compute the mean , variance and standard deviation of the sampling distribution taken from the following populations. When 25 numbers are drawn with replacement from a jar containing 1, 3, 5 and 6.
Compute the mean , variance and standard deviation of the sampling distribution taken from the following populations.
When 25 numbers are drawn with replacement from a jar containing 1, 3, 5 and 6.
When a sample size 9 are taken with replacement from the population 1,1,2,2,2,3,3,4.
When a biased die whose even numbers come up twice as the odd numbers is rolled 16 times.
What are the mean, variance and standard error of the sample mean when 60 students are taken from a population of 2000 with a mean score of 75 and standard deviation of 5?
The mean IQ of 10000 students of SJ University is 98 with standard deviation of 4. If 100 of them were taken as samples, what are the mean, variance and standard error of the sampling distribution?
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Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...
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