Vocabulary
Dealing With Data
More Data
Line Plots and Dot Plots
Histograms
100
The measure of center that refers to the data value that appears most often is called the ________
MODE
100
What is the mode of this data set?
2, 4, 4, 5, 6, 7, 8
4
100
What is the mode of this data set?
10, 11, 14, 9, 11, 13, 12, 14
11 AND 14
100
What is the mode of this data set?
13 letters
100
According to the histogram, how many trees are between 150 cm and 200 cm?
30 trees
200
The ___________ is determined by finding the middle value in an ordered data set.
MEDIAN
200
What is the median of this data set?
4, 6, 9, 10, 13, 14, 17
10
200
What is the median of this data set?
5, 6, 8, 10, 12, 13
9
200
What is the range of this data set?
15 - 8 = 7 letters
200
According to the histogram, how many trees are between 250 cm and 300 cm?
50 trees
300
When we calculate the RANGE, we find the _______________ between the maximum value and the minimum value.
difference
300
What is the range of this data set?
87, 75, 91, 83, 89, 77, 98
98 - 75 = 23
300
What is the range of this data set?
37, 43, 28, 55, 45, 32, 48, 37
55 - 28 = 27
300
What is the median of this data set?
3 hours
300
What is the interval size for the tree heights?
50 centimeters
400
An ____________ is a data value that is different from the rest of the values on the data set (and can greatly influence the mean)
OUTLIER
400
Calculate the mean of this data set.
10, 5, 6, 5, 8, 12, 10
8
400
Calculate the mean of this data set.
9, 13, 8, 11, 9, 10
10
400
What is the median of this data set?
3 pets
400
How many trees are at least 250 cm tall?
61 trees
500
__________ ________ refers to how many data values there are in each group of consecutive data values for a histogram.
INTERVAL SIZE
500
Which measure of center (mean, median, or mode) should we use to describe an average value for this data set?
4, 9, 1, 5, 2, 3, 4, 2, 3, 1, 3, 2, 3
Median (because 9 is an outlier)
500
Which measure of center (mean, median, or mode) should we use to describe an average value for this data set?
20, 27, 23, 28, 25, 21, 27, 26, 25, 24, 22
Mean (because there are no outliers and none of the values appear more than twice)
500
What is the mean of this data set?
3 siblings
500
About how many trees are between 150 cm and 300 cm?
107-108 trees