Vocab
The number that occurs most often is the definition for which term?
Mode
Average
Put the numbers in order, then find the middle.
9, 12, 8, 3, 5
8
What is the mode of this data set?
4, 7,10, 2, 4, 3, 2, 8
2
Is this a statistical question?
How many chairs are in this classroom?
No
The biggest number minus the smallest number is the definition for which term?
Range
If a data set has 12 data values and the sum of the data values is 102. What is the mean?
8.5
Find the median of the data set.
10, 11, 14, 7, 5
What is the mode of this data set?
7, 8, 2, 7, 10, 4, 2, 3, 5
2 & 7
Is this a statistical question?
How heavy are elephants?
The middle number of an ordered data set is the definition of which term?
Median
Find the average of the data set.
2, 3, 5, 7, 9, 10
6
Find the Median of the data set.
10, 12, 14, 10, 8, 5
10
What is the range of this data set?
7, 8, 2, 7, 10, 4, 2, 3, 5
10-2 = 8
What are the three measures of center?
Mean, Median, & Mode
The sum divided by the number of data values is the definition of which term?
Mean
What is the missing data value?
4, 6, 8, 10, X
When the mean is 6
2
How do you find the median of a data set when there are two numbers in the middle?
Add them together, then divide by 2
What is the mode of this data set?
2, 4, 5, 7, 8, 10
None
What are two measures of spread?
Range
Mean Absolute Deviation (MAD)
Outliers
IQR
A number that is much larger or much smaller than the rest of the data set is the definition for which term?
Outlier
The YMCA's pool was open for free swim for 5 hours on Saturday. The number of swimmers at the pool each hour was 9, 11, 6, 5, 4. What is the average number of swimmers per hour?
7 Swimmers
Find the Median of the data set.
12, 14, 10, 16, 10, 8
11
What is the mode of this data set?
2, 2, 4, 10, 7, 7, 4, 5, 4, 3, 4
4
What does IQR stand for?
Interquartile Range