Post on 25-Dec-2014
description
Day 4 Mean Absolute Deviation.notebook
1
March 08, 2013
Do NowAIM: Mean Absolute Deviation
Day 4 Mean Absolute Deviation.notebook
2
March 08, 2013
Day 4 Mean Absolute Deviation.notebook
3
March 08, 2013
Anticipatory Set
Prudential Commerical
1.) How did they create their dot plot?
Day 4 Mean Absolute Deviation.notebook
4
March 08, 2013
1. Explore: Analyzing Dot PlotsThe school nurse measured all the boys' heights during their physical education class. She made a list of the basketball players' heights and the soccer players' heights.
Basketball Players' Heights (in.)
69, 70, 72, 73, 73, 73, 74, 75, 75, 76
Soccer Players' Heights (in.)
65, 66, 68, 69, 69, 70, 70, 70, 71, 72
A. Make a dot plot of the heights of the basketball players.
62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78
B. Make a dot plot of the heights of the soccer players.
62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78
Day 4 Mean Absolute Deviation.notebook
5
March 08, 2013
REFLECT1.) What can you conclude about the data based on your plots?
The data sets have a similar ___________, but the basketball data are ________ to the right.
Day 4 Mean Absolute Deviation.notebook
6
March 08, 2013
Day 4 Mean Absolute Deviation.notebook
7
March 08, 2013
A. Calculate the mean height for the basketball players.69 + 70 +72+ 73 + 73 + 73 + 74 + 75+ 75 + 76 =
B. Calculate the MAD for the basketball players.
69 - 73 = 73 - 73 =
70 - 73 = 74 - 73 =
72 - 73 = 75 - 73 =
73 - 73 = 75 - 73 =
73 - 73 = 76 - 73 =
Find the mean of the absolute values.
The MAD is ___________
Day 4 Mean Absolute Deviation.notebook
8
March 08, 2013
A. Calculate the mean height for the soccer players.65 + 66 + 68 + 69 + 69 + 70 + 70 + 70+ 71 + 72 =
B. Calculate the MAD for the soccer players.
65 - 69 = 70 - 69 =
66 - 69 = 70 - 69 =
68 - 69 = 70 - 69 =
69 - 69 = 71 - 69 =
69 - 69 = 72 - 69 =
Find the mean of the absolute values.
The MAD is ___________
Day 4 Mean Absolute Deviation.notebook
9
March 08, 2013
E How are the mean and the MAD reflected in the dot plots.
F Find the difference of the means.
G Write the difference of means as a multiple of the MAD.
4 = 1.6 X ___
The means of the two data sets differ by ____ times the amount that an individual height varies.
REFLECT2. If two data sets have the same mean but different MADs, how would that reflect in the dot plots?
Day 4 Mean Absolute Deviation.notebook
10
March 08, 2013
3 Explore: Comparing Large Populations
Paula and Dean wanted to determine the average word length in two books. They took a random sample of 12 words each and counted the length of each word from each book.
Book 1 Word Count
3, 7, 5, 2, 4, 3, 1, 6, 4, 8, 2, 3
Book 2 Word Count
5, 4, 3, 6, 4, 5, 5, 2, 3, 4, 2, 5
A. Calculate the mean for Book 1.
B. Calculate the MAD for Book 1.
Day 4 Mean Absolute Deviation.notebook
11
March 08, 2013
3 Explore: Comparing Large Populations
Paula and Dean wanted to determine the average word length in two books. They took a random sample of 12 words each and counted the length of each word from each book.
Book 1 Word Count
3, 7, 5, 2, 4, 3, 1, 6, 4, 8, 2, 3
Book 2 Word Count
5, 4, 3, 6, 4, 5, 5, 2, 3, 4, 2, 5
C. Calculate the mean for Book 2.
D. Calculate the MAD for Book 2.
Day 4 Mean Absolute Deviation.notebook
12
March 08, 2013
E What can you infer about each population?
Day 4 Mean Absolute Deviation.notebook
13
March 08, 2013
Homework
On Core Page 148 #1-6 all