Calculating Measures of Center & Variation (6.SP.A.3)
Making & Analyzing Box Plots (6.SP.B.4)
When to Use Measures of Center & Variation (7.SP.B.4)
Distribution of the Data Set (6.SP.A.2)
Comparing Two Data Sets (7.SP.B.3)
100
Find the mode of the data set:
8, 10, 9, 5, 5, 6, 6
Mode = 5 and 6
100
What is the median of the data set represented by the box plot?
Median = 40
100
9 participants in an experiment had the following reaction times (in milliseconds):
495, 771, 772, 780, 780, 782, 791, 811, 815
Should you use mean, median, or mode to represent the center? Why?
Median because there are no repeating numbers and it has one extreme value (495).
100
The ________ of the data represents the way the data looks when graphed.
a. Shape
b. Spread
c. Distribution
d. Center
a. Shape
100
True or false?
The range for Test Prep Extreme's scores is greater than the range of ACT Academy's scores.
False
200
Calculate the mean of the data set:
8, 10, 9, 5, 5, 6, 6
Mean = 7
200
What is the range of the data set represented by this box plot?
Range = 6
200
Members of the dance team bought new shoes and recorded the prices:
$24, $52, $52, $53, $59, $61, $63, $64
Should you use range or IQR to represent the variation of this data set? Why?
IQR because it has an extreme value ($24).
200
The "variation" of a dataset relates to the ________ of the data.
a. Shape
b. Spread
c. Distribution
d. Center
b. Spread
200
What is the weight of the heaviest player of each team?
Chicago Bulls: 250
Atlanta Hawks: 260
300
Calculate the median of the data set:
8, 10, 9, 5, 5, 6, 6
Median = 6
300
What is the IQR of the data set represented by this box plot?
IQR = 3
300
A survey asked 10 people how many sodas they drank in a month:
29, 30, 30, 31, 32, 33, 34, 35, 36, 39
Should you use mean, median, or mode to represent the center of this data set? Why?
Mean because there are no repeating numbers and no extreme values.
300
What is the approximate center of the dot plot's distribution?
Approximately 1-2
300
The range of the Dallas Mavericks is __________ the range of the Orlando Magic.
greater than
400
Calculate the range and IQR of the data set:
8, 10, 9, 5, 5, 6, 6
Range = 5
IQR = 4
400
Make a box plot for this data:
8, 10, 9, 5, 5, 6, 6
400
The school recorded the number of children in each family of a class:
1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2
Should you use mean, median or mode to represent the center of this data set? Why?
Mode because more than half of the numbers are exactly the same.
400
Describe the shape of this distribution:
right skewed/positively skewed
400
The IQR of the Phoenix Suns is _________ the IQR of the San Antonio Spurs.
less than
500
Calculate the MAD (mean absolute deviation of the data set):
8, 10, 9, 5, 5, 6, 6
MAD = 1.71
500
Make a box plot for this data:
1, 2, 7, 7, 7, 8, 8, 9, 10, 11, 11, 13, 13
500
A retirement home records the ages of the residents that live there:
64, 75, 85, 85, 85, 85, 85, 85, 85, 102
Which measure of center should you use: mean, median, or mode? Why?
Which measure of variation should you use: range or IQR? Why?
Median because it has two extreme values (64 and 102).
IQR because it has the extreme values.
500
In this distribution, the mean will be ___________ the median.
equal to
500
What are the approximate medians of the two day's patients? (pick one whole number that you think is approximately the median)
Monday's Patients: 70
Tuesday's Patients: 71