9/29/10

September 30th, 2010

Quiz tomorrow!

Quiz is on:
- Line Graphs
- Histograms
- Stem and Leaf Plots

HOMEWORK: Review Worksheet

LOG PROBLEM
1. What is 10% of 87?
2. What is 60% of 300?

AGENDA
1. Copy bold vocabulary on page 140.
2. Page 141: 1-7

3. Box and Whisker Plot Example: p. 142
a. Complete page 143 together

4. Draw a Box and Whisker Plot for this data:
a. 2, 4, 8, 12, 14, 15, 15, 22, 29, 42, 51

b. Label and identify the following:
i. Lower Quartile (1st Quartile)
ii. Median (2nd Quartile)
iii. Upper Quartile (3rd Quartile)
iv. Interquartile range


QUIZ REVIEW
5. BUCKLE DOWN p. 151, 153, 155, 159

Answers:
p.151
1) 24
2) 8
3) 7:00-7:29

p.153
1) day 10
2) day 5
3)day 11
4)B

p.155
1) Nicole's
2) day 5
3) 2006-2008
4)B

p.159
1)47
2)21
3)52
4)yes, 90-99
5)D

September 29th, 2010

LOG PROBLEM
1. What is 10% of 25?

HOMEWORK
1. 25% of 50
2. 75% of 200
3. 10% of 10

AGENDA
1. Collect Circle Graph Worksheet
2. Histogram Worksheet – You should have two histograms drawn on a separate sheet of paper
3. DWD Book – p. 19 (problems 14a and 14b), p. 22
4. PSSA Buckle Down Book – p. 151

LINK
http://www.shodor.org/interactivate/activities/SimpleMazeGame/

9/28/10

September 28th, 2010

LOG PROBLEM
1. What is 12% of 400?
2. What is 5% of 150?

VOCABULARY:
1. Histogram – bar graph that shows data in intervals
2. Interval – range of numbers (ex. 11-20)

HOMEWORK - DWD Book
-page 19 (problems 14a and 14b)
-page 22

9/27/10

September 27th, 2010

HOMEWORK

PFW Book pages 3-4

9/24/10

September 23rd, 2010

HOMEWORK

PFW Book Page 3

9/22/10

September 22nd, 2010

LOG PROBLEM
What is the mean, median, mode, and range for the following data:
1.8, 2.8, 0.7, 1.5, 0.7

HOMEWORK

PFW - Complete pages 1 and 2

9/21/10

September 21st, 2010

1) LOG PROBLEM
What is the mean, median, mode, and range of the following numbers?
A) 102, 99, 98, 102

2) HOMEWORK – Quiz Tomorrow!

Calculate the mean, median, mode, and range for the following sets of data:
a. 20.2 22, 20.2, 19.8
b. 57, 55, 55, 54, 53, 54

9/20/10

1) LOG PROBLEM
What is the mean, median, mode, and range of the following numbers?
A) 7, 10, 8, 4, 8, 11, 9, 9, 8, 6

2) HOMEWORK – Quiz Wednesday!
Calculate the mean, median, mode, and range for the following sets of data:
a. 12, 9, 13, 13, 11, 13, 12, 13
b. 2, 1, 2, 2, 4, 2

3) Class Work
A) Dealing With Data page 9
a. Graph the points on the graph paper given to you

9/17/10

September 17th, 2010

LOG PROBLEM
What is the mean, median, mode, and range of the following numbers?
11.8, 2.41, 8.02, 11.8

9/16/10

September 16th, 2010

HOMEWORK: PFW Book Page 1: Problems1-4

LOG PROBLEM
What is the mean, median, mode, and range of the following numbers?
A) 1, 3, 9, 1, 9

9/15/10

September 15th, 2010

LOG PROBLEM
What is the mean and the mode of the following numbers?
A) 11.2, 4.42, 11.2, 13.378

Answer: Mean - 10.05 Mode - 11.2

HOMEWORK
What is the mean and the mode of the following numbers?
A) 12.5, 3.12, 3.12, 10
A) 5, 1.42, 10, 10, 10
A) 9.8, 7, 31



Page 3
3a.
2b and 2c are easy because they occur so early in the list.

3b.
2d was difficult because the example was so far down the list.

4.
They probably counted the cases where the sons were taller than their fathers. They could have also graphed their data or found the mean of the sons and the fathers.

Page 4
5a.
Anita’s reasoning is better. She counts the amount of cases. Dustin only uses one value.

5b.
Anita’s reasoning is better. Tiwanda’s numbers can be misleading if there were several very tall sons.

5c.
Huong’s is the best because it takes all the data into account.

Page 6

8.
They collected data from a large sample. If chosen carefully, with attention to representatives, a large sample can show things about the whole population even though the whole population may be much larger than the sample.

Page 7

9.
The fishbowl on the left is representative. It shows every different type of fish. The one on the right does not.

10.

Population- 711; Sample that is not representative – 4 girls

11.
Possibly not, college students in 1903 might have had better nutrition.

Page 8

13.
If a sample does not represent the population fairly, the data will not give a true picture of the population.

14.
It is difficult to see patterns or trends. The data must be organized in some way to make sense of it!

15.
Put the data in order. Graph the data. Calculate the mean and range to summarize the data.

9/14/10

September 14th, 2010

LOG PROBLEM
What is the mean of the following numbers?
A) 2.3, 4.01, 5.48
B) 8.3, 9.03, 8.12
C) 10.22, 12.4, 12.15

ANSWERS:
A) 3.93
B) 8.48
C) 11.59

9/13/10

September 13th, 2010

HOMEWORK
What is the mean of the following numbers?
A) 1, 3, 4
B) 5, 8, 8, 10
C) 2, 4, 4, 6


LOG PROBLEM 2

What is the mean of the following numbers?

A) 104, 82, 96, 86

Answer: 92


LOG PROBLEM

If you got the following scores on your math quizzes, what would the MEAN be?

A) 70, 100
B) 90, 95, 100
C) 70, 65, 80, 80, 90

ANSWERS TO LOG PROBLEMS:
A) 85
B) 95
C) 77

Next assignment:
1. Go to aaamath.com
2. On left side, click "Statistics"
3. Click on "Statistical Mean or Average - 1 digit numbers"
4. Read what the definition of Mean
5. Scroll down and solve 10 problems correctly.
6. Click back to the menu and do the same for the other types of problems.

9/8/10

September 8th, 2010

HOMEWORK
Get a three-ring binder and dividers

LOG PROBLEM: If you got the following scores on your math quizzes, what would your final number grade be?

A) 80, 100
B) 90, 92, 100, 98
C) 88, 72, 63, 100, 91, 74, 99, 100, 85

Answers:
A) 90
B) 95
C) 85.78

Next assignment:
1. Go to aaamath.com
2. On left side, click "Statistics"
3. Click on "Statistical Mean or Average - 1 digit numbers"
4. Read what the definition of Mean
5. Scroll down and solve 10 problems correctly.
6. Click back to the menu and do the same for the other types of problems.