Vocab
Define Range
What is how spread out a data set is. The difference between the highest and lowest scores in a distribution (maximum minus minimum)
What is the median of these numbers?
3, 3, 4, 4, 6, 6, 7, 8, 9, 10, 11
What is 6?
Define Mean and how it is calculated
The average of a set of values. Take the sum of all values and divide by the number of values in the set.
What is the mean of this data set?
1000, 200, 800, 1000, 950, 50, 500, 550
What is 631.25?
Define Median and how it is calculated.
What is the middle data value when the data are listed in order from least to greatest? If the data set has an even number of items, divide the middle two numbers to find the actual median.
Find the IQR of the following data set:
3, 3, 4, 6, 6, 9, 10
What is 6?
Define Interquartile Range and how to find it.
What is the difference between the value of the upper quartile (Q3) and the lower quartile (Q1).
Q3-Q1.
A larger IQR represents a larger spread of data.
This is the range of the following data set:
57, 24, 42, 38, 67, 53, 39, 47
What is 43? 67-24
These 5 measures are used when creating a box plot.
What is minimum, Quartile 1, Median, Quartile 3, and Maximum
Creat a box plot for given data set:
42, 65, 65, 70, 72, 75, 80
Min - 42
Q1 - 65
Med - 70
Q3 - 75
Max - 80