Measure of Center
Stem-and-Leaf Plots
Define
Histograms
Misc.
100
The "average" of a set of data
What is Mean
100
How many plants were measured?
What is 12 plants measured.
100
Mean
What is the average
100
What type of graph is a histogram?
What is Bar graph
100
Find the median.
5, 7, 10, 3, 6, 7, 2
What is 6
200
How must data be organized before you can find the median?
What is in order from least to greatest
200
What is the difference between the fastest and longest time?
What is 3.8 seconds
200
Median
What is the Middle
200
Special property regarding the bars for a histogram
What is the bars must touch
200
Find the mode.
2, 8, 4, 2, 7, 4, 9, 10, 4, 16
What is 4
300
Explain how to find the mean of a data set
What is Add the data values and divide by the number of the data values
300
How many plants are less than 40 cm in height?
What is 7
300
What are data values that are either much greater or much less than the other data values?
What are Outliers
300
true or false:
In a histogram the numerical information is always groups in intervals.
What is True
300
Find the range.
4, 10, 17, 22, 30
What is 26
400
Find the median:
1, 4, 6, 8, 10, 17
What is 7
400
How many numbers were recorded in the stem- and- leaf plot?
What is 16
400
Bar graph that shows continuous data (all parts touch)
What is a Histogram
400
What kind of data is needed to create a histogram?
What is quantitative data
400
The five number summary consists of:
What is min, q1, q2, q3, max
500
Find the mean:
1, 3, 5, 7, 2, 6
What is 4
500
Find the mean for the heights of plants.
What is 41.25 cm
500
Standard Deviation
What is Measures the spread of data
500
How many students are represented in this graph?
What is 17
500
Find the Mean.
2, 4, 5, 6, 2, 3, 1, 1
What is 3