MATH 10 - 4TH PRELIM Flashcards
The difference between the largest and smallest value
Range
Ungrouped data
Range = largest datum - smallest datum
Grouped data
Range = highest class boundary - lowest class boundary
Q1 - the middle value of the lower half of the data
Lower quartile
Q2 - the median of the whole set of data
Second quartile
Q3 - the middle value of the upper half of the data
Upper Quartile
Difference between the upper quartile and the lower quartile
Interquartile range (IQR)
Interquartile range formula
Interquartile range = Q3 - Q1
The greater the interquartile range, the greater the dispersion
True
The process of finding a value between two data
Linear interpolation
Divides data into 10 equal parts
Decile
Divides data into one hundred equal parts
Percentiles