Data Set Essay Example | Topics and Well Written Essays - 500 words

Data Set - Essay Example What is the range of a set of data? Refers to the difference between the highest and the lowest data values of a given data set What is another name for the lower quartile? The first quartile What is the lower quartile? It divides the lower fourth of the data set from the upper three fourths What are the other two names for the middle quartile? The median, the second quartile What is the middle quartile? It refers to the overall median term of a given data set What is another name for the upper quartile? Third quartile What is the upper quartile? It is the median of the data values in the upper half of a data set What is the 5 number summary of a set of data? low value, lower quartile, median, upper quartile, high value What is a box plot? Refers to plot that shows the five number summary visually with a rectangular box enclosing the lower and upper quartiles, a line marking the median and whiskers extending to the minimum and maximum values. The term standard deviation sounds really scary, but it is not really a horrible monster what is it a measure of? It is a measure of spread or variation What is the formula we use to find the standard deviation of a set of data? standard deviation=√(sum of (deviations from mean)^2/total number of data values-1) What is the range rule of thumb? It is the relationship between the standard deviation and the range given by