Flashcards in Quartiles and Percentiles Deck (8)
whats a quartile?
a part of a data set that has been split into four
what is the first quartile?
the median of the lower half of the sample
what is the third quartile?
median of the upper half of the sample
what is the second quartile?
what is the five number summary?
5 elements containing the three quartiles and the min and max values of the data set
whats the interquartile range?
q3-q1, descibes the amount of variation in the middle half of the observations
how to spot an outlier in a data set?
extreme if 3*iqr