As the name of the topic indicates variance is a "Measure of Variability" The variance is a measure of variability. It means that for a set of data you can say: "The higher variance, the more different data".

Questions How are the measures of central tendency and measures of dispersion complementary? Can the standard deviation be greater than the mean? Can the standard deviation ever be negative? …

Explanation: Variance is calculated based on the sum of XXX the squares of XXXXXX the deviations between each data value and the mean of the data values. If the data values represent the entire …

What are the mean and standard deviation of a binomial probability distribution with #n=130 # and #p=3/4 #? What does the confidence interval of a sample tell you? Why can't variance be negative? …

Explanation: We can approach this problem in two ways, I will do so using MLE We know the following #E (epsilon) = 0# thus we can remove it becuase we expect this to be 0 regardless of the variance.

The volume of the 40 molar solution required is "0.005 mL" or "5 mL". Refer to the explanation for the process. The symbol "M" represents molarity, which is "moles of solute"/"liters of solution". A "0.10 …

(8.8)"."10^-6 "Coulombs" color (blue)"Electric charge density" q = n e Where, q: is the symbol used to represent charge, (C) n: is a positive or negative integer, " (electrons)" e: is the electronic charge, …

Explanation: Theta is not something that has a definite value. It is described as a variable in mathematics which is a angle (any angle).

The _ is ""_28^60"Ni". > Your equation is ""_27^60"Co" → ""_text(-1)^0"e" +"?" It becomes easier to balance the equation if we replace the "?" with an element symbol ""_x^y"Z". Then the equation …

However it is a special case where the bottom number (denominator) is fixed at 100. Often you will see the symbol % used. This is just like a unit of measurement but one that is worth #1/100# It serves the …