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If a frequency distribution has open-ended intervals at the extremes which measure of central location is the most difficult to estimate?
mean
Why are open-ended frequency distributions necessary?
to quickly and effectively represent data
Can the median be found for an open ended distribution?
Yes, if it is a mathematically well behaved distribution.For a symmetric distribution, such as the Gaussian (Normal) it is the same as the mean.For the Standard Normal or the Student's t the median is 0.For the exponential distribution, with parameter lambda, the median is ln(2)/lambda. (ln = natural logarithm.]A chi-squared distribution with k degrees of freedom has a median approximated by k*(1 - 2/9k)^3.For a Beta(a, b) distribution the median depends on the incomplete Beta function but if a and b >1, then it can be approximated by (a - 1/3)/(a + b - 2/3).For a Weibull distribution, with scale parameter L and shape parameter K, it is L*(ln2)^(1/K).
What year segragetion ended?
it ended after the civil war and the reconstuction period many slaves were freed and went to freedmen beru to learn and help with a lot of other thing look it up on google for more information
How do you make chart of open ended questions?
I'm not sure what the question means but here we go with an answer. Open ended questions are one that when asked can not be answer with a simple yes or no. The answerer must elaborate, explain and otherwise embellish in order to give an answer. To ask an open ended question you don't as "why" but rather "what" and "how". Until you get used to asking such questions a good idea to write them down down ahead of time until the become second nature to you. There are statistical programs that can categorize open-ends. You could then create a chart based on the number of comments in each category.
