Statistics Questions
Explore questions in the Statistics category that you can ask Spark.E!
For a normally distributed variable what does the percentage of all possible observations that lie within any specified range equal?
What does a normal probability plot that falls nearly in a straight line indicate?
What is the shape of a standard normal curve?
What is the mean and standard deviation of a standardized version of any variable?
What is the horizontal axis labeled?
What is the standard normal curve also called?
For smaller sample what type of graph should be used for assessing normality>
s is/is not affected by outliers
If you are given variance how do you get the Standard deviation?
What is the Shape Ratio? What is the formula? If given a mean, Standard deviation, and risk free rate of return could you find it out?
the smaller/larger the standard deviation, the more spread out the data is
What graphical tool is best used to display the relative frequency of a numerical variable?
s works well for ___________ distributions
What is the correlation coefficient, the formula, and if given numbers can you calculate it?
s can only be ____ if there is no variability in the data
Can you use a table to take a statistic like a percent or relative frequency and find the number given the population size? (Think back to the Relative Frequency Case Study)
What is a sample space. What would the sample space be for letter grades in this class?
When looking at the probability of an event, all the probabilities must add up to ___________
The intersection of events A = {The Porch, Louie's, The Library, O'Connell's} and B = { The Library, O'Connell's, Logies, Volare} is
When an event has one outcome we call that a ______ event.