Mean & MAD
Find the mean of the numbers: 12, 18, 16, 24, 34, 40
24
Way of showing numerical data into bins topped with a vertical bar
Histogram
What is the median of the data: 7, 12, 5, 6, 20, 13, 5?
9
Can only be answered by using data and where we expect the data to have variability
Statistical Question
What is the mean of these numbers? 7, 5, 3, 7, 3
5
How do we describe the distribution of a histogram?
Symmetrical, Gaps, Major peaks, Data points from the center
What is the median of the data: 7, 9, 10, 4, 13, 19, 13, 8, 21?
10
How many letters are in the names of each person in my class?
Statistical Question
What is the average distance away from the Mean? 10, 30, 14, 15, 11 (Hint: MAD)
5.6
How do we determine the total number surveyed in a dot plot?
By counting the number of dots.
What is the median of the score in order? 72, 84, 84, 71, 86, 92, 80?
84
What date is Christmas?
Non-Statistical Question
What is the mean of the test scores: 72, 85, 92, 36 and 54?
67.8
How do we determine the total number surveyed in a histogram?
Adding all of the bins together.
What is the median of the data? 5, 1, 1, 0, 0, 2, 3, 2, 2, 2, 3, 1, 1, 1, 0
1
A. What size are your soccer shoes?
B. What is the date of our next game?
C. How many games have we won so far this year?
D. What is the most points we scored in a game this season?
A. What size are your soccer shoes?
2.3
Which numbers are included in a histogram? Left-end value or right-end value?Le
Left end value
What is the median of the data? 3, 3, 1, 0, 2, 0, 2, 2, 2
2
How many students in our school are over 6 feet tall?
Non-Statistical Question