Since the probability is 17% and we're using a sample size of 100, the standard deviation comes out to be about 0.038. This means that in different samples of 100 students, the proportion of correct guesses will usually vary by about 0.038 from the mean. Here is the ...
What is the algebraic equation for the coefficient of variation? Calculate each factorial. a. 2! b. 4! What is a sampling fraction? What is multistage sampling? a) What is an exponential distribution (include an APA citation)? b) When would you use an exponential distribution? c) What is...
Standard Deviation Equation, Formula & Examples from Chapter 13/ Lesson 4 211K The standard deviation of a data set is a measurement of how close, in aggregate, its values are to the mean. The baseline from which this distance is measured is the mean of the data set. In short,...
Standard Deviation Equation, Formula & Examples from Chapter 13 / Lesson 4 213K The standard deviation of a data set is a measurement of how close, in aggregate, its values are to the mean. The baseline from which this distance is measured is the mean of the data set. In short, ...
“The greatest shortcoming of the human race is man's inability to understand the exponential function.” — Albert AllenBartlett, 1976 “I don't see Flipdish as a success yet – because if we don't continue to double or triple each year, if we're not the leader in this space in a...
As an unrelated link, Jordan Ellenberg has just written a piece for the Washington Post on statistical sampling and how it could make the US census more accurate. (Whether this is politically viable is, of course, a different matter.)DH...
The update is given by the famous Bayes theorem where is the probability that the event would have occurred under the null hypothesis , and is the probability that the event would have occurred under the alternative hypothesis . Let us divide the second equation by the first to cancel the ...
In single-linkage clustering, the shortest distance between any pair of data points in two clusters is used as a similarity measure. In all-pairs linkage, the average across all pairs of data points is used, whereas in sampled linkage, a sampling of the data points in the two clusters is...
(a) What is the range? (b) Why is it not the most accurate measure of variability? (c) When is it used as the sole measure of variability? What are the main advantages of standardizing the normal distribution? Explain. Define the symbols used in the equation for variance: SD^2 = Sig...
A probability distribution is a function or graph that displays the probabilities of various outcomes. This might be a distribution of all scores in a sample, a distribution of possible samples in a sampling distribution, or a distribution of all possible outcomes of discrete events....