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Measures of Central Tendency
Pot Luck
Box-And-Whisker Plots
Variability
Mean, Mode, Median
100
What are the three measures of central tendency?
Mean, Median, Mode
100
Find the range of this data set: 17, 47, 26, 2, 31, 19
45
100
What are the five values need to make a box-and-whisker plot?
Minimum, 1st quartile, median, 3rd quartile, maximum
100
If all of the data values are the same, there is no variability in the data set.
No Variability
100
This is the mode of the following book costs: 5, 5, 9, 49, 11, and 5
What is 5?
200
Find the mean rounded to the nearest tenth: 17, 26, 37, 22, 30, 19, 21
24.6
200
Find the interquartile range of this data set: 87, 81, 92, 77, 97, 84
12
200
What are the minimum and maximum values of the data set: 78, 12, 109, 36, 121
12 and 121
200
The more similar the data values are, the less variability there is in the data set.
What is low variabilty
200
Calculate this measure of central tendency by adding all the data values together and dividing the sum by the total number of data values.
What is the mean?
300
Find the median: 197, 56, 203, 79, 145, 2
112
300
The measure of variability of a numerical data set that is the difference between the greatest and least values in a data set.
What is the range?
300
What is the median of the data set: 72, 90, 84, 76, 68
76
300
What kind of variability can you expect in the responses to this statistical question? Explain. How many bicycles does each student in your class own?
What is low variability?
300
The mean of the data set of the number of books these five people own: 37, 50, 53, 17, 10, 49
What is 36.
400
What value of x makes this data set have a mean of 6: 10, 6, 12, 3, x
5
400
The range of each data set: 30, 27, 24, 30, 32, 31
What is 8?
400
What are the 1st and 3rd Quartiles of the data set: 19, 22, 15, 20, 12
13.5 and 21
400
The more spread out, or varied, the data values are, the higher the variability in the data set.
What is high variability
400
Your classmate describes the data below by using a measure of center, 21.5. 25, 4, 78, 18, 7, 63
What is the median?
500
Create a data set that has 5 values, has a mean of 12, a median of 13 and a mode of 13 and 14.
6, 13, 13, 14, 14
500
Find the standard deviation of the data set: 63, 59, 70, 68
4.3
500
Find the minimum, 1st quartile, median, 3rd quartile, and maximum: 27, 22, 25, 27, 23, 28
22, 23, 26, 27, 28
500
The value that describes the amount of variability in a data set.
What is the measure of variability?
500
The median of the data set? 137, ?-150, 55, 17, -?101, 179
What is 36?