For the set of numbers 2, 3, 7, 8, and 10, the second-order moment about the origin 4 is:
13.2
Second-order moment about 4 is \(\frac{1}{n}\sum (x_i - 4)^2 = \frac{(2-4)^2 + (3-4)^2 + \dots + (10-4)^2}{5} = \frac{66}{5} = 13.2\).
Similar Questions
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Important Questions from Statistical estimation
The ______ is an unbiased estimator of the population mean.
If xi = i / 5 + 2, where i = 1, 2,..., 5, then the mean of x1, x2, ..., x5 is:
Let X and Y be two independent Poisson variates with rate 5 and 10, respectively, then the E(XY = 2) is equal to:
On fitting of a trend line Y = a + bt on a time series (with year as a unit of time), the monthly increment/decrement is given by:
If M: Mean, Md: Median, Mo: Mode, Q1: First Quartile and Q3: Third Quartile, then which of the following is an absolute measure of skewness?
