Unit 9 Schedule

**Date Topic HW CDC**

Indicator 29:

1/20/17 7.2 (B) pgs. 284 #’s 4 – 8 all

1/23/17 7.1 (B) pgs. 278 – 279 #’s 4 – 15 all

1/24/17 7.2 (B) cont. pgs. 284 – 285 #’s 9 – 12 all

Indicator 27:

1/25/17 7.3(B) pgs. 293 – 294 #’ 3 – 9 all

1/26/17 7.3 (B) pgs. 294 – 295 #’s 11 – 14 all, 16

1/27/17 7.3b (B) pgs. 295A – 295B #’s 1 and 2

1/30/17 7.3b (B) See below

Indicator 28:

1/31/17 8.2 (R) See below

2/1/17 8.3 (R) See below

Indicator 30:

2/2/17 8.4 (R) See below

2/3/17 MAD See below

2/6/17 MAD (cont.) Complete Unit 9 Practice Test

2/7/17 Review Indicators 27 – 30

2/8/17 Review

2/9/17 Unit 9 Test

***** Unit 9 CDC Due February 6, 2017– No late CDC’s will be accepted. (Unless due to an excused absence.)**

Zeke takes eleven tests in a semester. He made the following scores: 95, 100, 75, 90, 55, 70, 80, 90, 75, 100, and 85.

Using graph paper and a ruler, make a box and whisker plot of the test scores.

Then, copy the list below and fill in the required information. This should be placed below your box and whisker plot.

Lower Extreme ______

First Quartile ______

Median ______

Third Quartile ______

Upper Extreme ______

Interquartile Range ______

The box and whisker plot counts as 2 of 5 points of the data. The Lower Extreme, etc. each count a half point each of the data for a total of 3 out of 5 points.

Don't forget to do a claim section (1 point) and commentary section (4 points).

7.3 Two-Way Table Day 2 – January 30, 2017______

1. You randomly survey students in a school about whether they got the flu after receiving a flu shot. The results of the survey are shown in the two-way table.

a. How many of the students in the survey received a flu shot and still got the flu?

b. Find and interpret the sum of the entries in each row and column.

c. What percent of the students in the survey did not get a flu shot and did not get the flu?

2.You randomly survey students in a school about whether they eat breakfast at home or at school.**Grade 6 Students:** 28 eat breakfast at home, 12 eat breakfast at school**Grade 7 Students:** 15 eat breakfast at home, 15 eat breakfast at school**Grade 8 Students:** 9 eat breakfast at home, 21 eat breakfast at school

a. Make a two-way table including the totals of the rows and columns.

b. For each grade level, what percent of the students in the survey eat breakfast at home? eat lunch at school? Organize the results in a two-way table. Explain what one of the entries represents.

c. Does the table in part (b) show a relationship between grade level and breakfast choice? Explain.

8.2 Histograms – January 31, 2017______**Determine the type of distribution shown by the histogram.**

1. 2. **Display the data in a histogram**.

3. 4.

5. The histogram shows the number of laps completed by the swimmers on a team during a practice.

a. Which interval contains the most data values?

b. How many swimmers are on the team?

c. What percent of the swimmers swam more than 14 laps? Round to the nearest tenth of a percent.**8.3 Circle Graphs – February 1, 2017______**

The circle graph shows the results of a survey on favorite sports.

1. Which sport is the least popular?

2. Compare the number of students

who chose football with the number

of students who chose basketball.

3. The survey included 60 students.

How many students chose football?

Find the angle measure that corresponds to the percent of a circle.

4. 60% 5. 10%

Display the data in a circle graph.

6. 7.

8. A survey asks a group of adults what type of beverage they prefer for breakfast. The results show that 78% prefer coffee, 24% prefer tea, 43% prefer milk, and 65% prefer orange juice. Can a circle graph be used to display these data? Explain your reasoning.

9. A survey asks a group of adults what type of beverage they prefer for breakfast. The results show that 38% prefer only coffee, 12% prefer only tea, 14% prefer only milk, and 15% prefer only orange juice, and 21% prefer more than one beverage. Can a circle graph be used to display these data? Explain your reasoning.

Samples and Populations – February 2, 2017______

Identify the population and the sample.

1. All students in a school 2. 75 strawberries in the field

30 students in the school All the strawberries in the field

3. You want to know the number of students in your school who read some of the newspaper at least once a week. You survey 30 random students that you meet in the hallway between classes.

a. What is the population of your survey?

b. What is the sample of your survey?

c. Is the sample reasonable? Explain.

Which sample is better for making a prediction? Explain.

4.

5.

Determine whether you would survey the population or a sample. Explain.

6. You want to know the average weight of the members of your family.

7. You want to know the number of grocery stores in Florida that carry your favorite cereal.

8. A survey asked 60 randomly chosen students if they eat school lunch. Forty said yes. There were 560 school

lunches sold today. Predict the number of students who attend the school.

Mean Absolute Deviation Homework – February 3, 2017______

1. Find the mean absolute deviation (MAD) for the set. {85, 90, 68, 75, 79}

2. Sherrie just registered for her wedding. So far 6 items have been fulfilled on her registry. Find the mean price of the fulfilled items. $29, $58, $15, $129, $75, $22

3. Find the mean absolute deviation of the fulfilled items on Sherrie’s registry. $29, $58, $15, $129, $75, $22

4. Find the mean absolute deviation for the set. {65, 90, 85, 70, 70, 95, 55}