using R~` Variance and Standard Deviation
1)
variance = p(1-p)
sd = sqrt(variance) = sqrt(p(1-p))
2)
variance of discrete uniform = ((b-a+1)^ 2 - 1)/12 =(6^2 - 1)/12 = 35/12
sd = sqrt( 35/12)
4)
var(Y) = var(a + bX) = b^2 Var(X)
sd(Y) = b sd(X)
I don't think there is any use of R here
using R~` Variance and Standard Deviation Variance and Standard Deviation Exercise. Compute the variance and standard...
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For the population of N = 5 units of Exercise 3 of Chapter 2 (a) Compute directly the variance var (y) of the sample mean and the variance var( m ) of the sample median. (b) From each sample, compute the sample variance s 2 and the estimate var (y) of the variance of the sample mean. Show that the sample variance s 2 is unbiased for the √ finite-population variance σ 2 but that the sample standard deviation 2...
please stop posting the wrong answers Variance Standard deviation Variance Standard deviation Chapter 5 The number of students taking the SAT has risen to an ali-time high of more than 1.5 milion (College Board, August 26, 2008), Students are stlowed to regeat the testin hapes of score that is sent to college and unlversity admission offices. The number of tmes the SAT was taken and the number of students are as follows. aserch this course 。 으Champ Number of Times...