Who Am I
I am a measure of center that refers to the "Most Popular" response.
Mode
What is the Mode of this Data Set?
3, 6, 5, 4, 6, 2, 8, 7, 6
6
What is the Range of the Data set below?
3, 6, 9, 4, 8, 11, 2
9
11-2=9
To be a statistical question, what two criteria must be met?
1) Asked multiple people
2)Answer Variablity
Simplify: 5(2A+B) +4B -A
9A + 9B
I am a Measure of Variability found by subtracting the Minimum value in the Data set from the Maximum value of the Data Set.
Range
What is the Median of this Data Set
3, 4, 5, 6, 7, 8, 9, 10, 11
7
What are the three measures of variability we've learned about so far?
Range
Inner Quartile Range
Mean Absolute Deviation
Factual Questions are not Statistical: True or False?
EX: How many students are sitting in class right now?
EX: How many players are on the Soccer team at LKMS this Season?
True
These questions do not have variability as there is only 1 correct answer
Write an equivalent Expression to 14A + 21B using the Distributive Property
7( 2A + 3B)
I skew the Data set because I am extremely different from the other pieces of Data in my set. A bit of an outlaw, you might say.
Outlier
What is the Median of this Data Set?
3.4, 5.2, 6.3, 6.5, 7.8, 8.1
6.4
What is the Inner Quartile Range for the Following set of Data?
3, 4, 5, 6, 7, 8, 9
4
Statistical or Not?
Does Sam have a Pet Dog?
Not Statistical
Sam either has Dogs or he doesn't, so there is no variability
Brayden left a 20% tip on a $25 bill at a restaurant last night. How much was his tip?
$5
My initials are MAD.
I measure how far each piece of Data is away from the Mean.
Mean Absolute Deviation
What is the Mean of this Data set?
4, 6, 5, 4, 6, 7, 9, 11
6.5
What is Inner Quartile Range for the following Data Set:
4, 4, 5, 6, 7, 8 ,8 ,9
3.5
Median = 6.5
Q1=4.5
Q3=8
8-4.5=3.5
Statistical or Not:
How many 6th Graders are Passing in Ms. Widding's 3rd Period Math Class
Not Statistical
While it varies if a student is passing or not, the number of students currently passing is factual in nature.
Aaron answered 9 out of 11 questions correctly on his last test. Assuming his teacher rounds to the nearest whole percent, what will his grade be?
82%
I am a measure of Variability found my subtracting Q1 from Q3. My Range tells you where the middle 50% of your Data values lay within the Data Set.
My Initials are IQR
Inner Quartile Range
What is the Mean of the following Data Set, excluding the outlier?
12.3, 11.5, 10.4, 11.9, 6.2, 13.3
11.88
outlier would have been 6.2
What is the Mean Absolute Deviation for the Following set of Data
12, 13, 15, 17, 18
MAD=2
Mean = 15
Re-write the following to make it a statistical Question:
How Many Students eat breakfast at school?
On what Day do Most students eat Breakfast at School?
What do Students eat when they get breakfast at school?
How often do most students Eat Breakfast at School?
Ally drives three more than twice as many miles as Sam does to work every Day. If Ally drives 57 miles, how far does Sam drive?
27
57-3=54
54/2=27