Outliers
What is the outlier?
478,24,456,5486,32
5486
What are two types of data?
Categorical and numerical
Say an advantage of dot plots...
Answers may vary:
Can find mode and range easily
Can see how the data is distributed
Suitable for discrete numerical data
What is the definition of the median?
The median is the middle value of a data set when the data set is in ascending order.
Free points
My idea
Definition of an outlier is...
An outlier is a value that is significantly larger or smaller than the other data values.
Classify question as categorical, discrete numerical, or continuous numerical data.
How many pets do you own?
Discrete numerical
Say a disadvantage of dot plots...
Need to count each dot when finding the median
What is the definition of range?
The range is the difference between the highest number and the lowest number.
Find the median
1,2,3,4,5,6,7
4
FREEEEEEE PPPPPPPPOOOOIIIIIIINTTTTTSSSS
My idea
what type of data is this?
What is the classes Favorite ice cream?
Categorical
PS: The actual answer is cookies and cream
High scores in a test:14,4,6,5,8,9,14,9,6,5
Put those numbers on a dot plot on a whiteboard
. . .
. . . . . .
14, 4, 6, 5, 8, 9
Calculate the range:
12,4,567,67,6
563
Find the outlier
45,67,21,4,56,80
4
When an outlier is removed from a data set, describe the effect on the range.
The range always decreases.
What type of data is this?
How long does it take you to fall asleep at night?
Numerical data
.
. .
. . .
_______________________
Guitar Drum piano
What is the mean
2
Calculate the mean
9,9,9,9
9
Free points
His idea
What is the outlier?
12345949874,675877588378,88759408,53,7758463, 6577940,
53
It's not the big number
Name all the types of data?
Discrete numerical, continuous numerical, categorical data
What distribution is this graph?
.
. .
. . .
. . . . .
________________________
Positively skewed distribution
Calculate the median:
5,6,3,7,2,8,9,0,3
5
find the mean
567 890 4726 5478
2915.25