1. 1st Period – ACT ASPIRE
Get pencils sharpened NOW. I do not want you doing this after the bell rings. NO MECHANICAL!
You only need a pencil on your desk.
No calculator
No scratch paper
Have everything ready to set in the hallway as soon as I give you instructions to do so.
If you need to go to the bathroom, Go NOW.
When the bell rings, Get Quiet.

2. Find the mean of the following sets of data.
Bell Ringer
Find the mean of the following sets of data.
45, 60, 30, 47, 45, 52, 57
2, 3, 1, 4
97, 98, 90, 85, 99, 96, 100
7, 4, 10, 5, 2, 9, 6

3. Announcements No School on Friday ACT Aspire tomorrow – BE HERE
Relay for Life

4. ACT Aspire Practice
13. A store is having a sale on 3 different items. Each sign below shows the original price of an item and how to calculate the discount for that item. Number the signs below to place them in order from least amount of discount to greatest amount of discount. _________ ___________ __________

5. ACT Aspire Practice
14. Mario and Jenna each drew a circle. Mario divided his circle in half. Jenna divided her circle into twice as many equal sections as Mario’s circle. Circle the word below that names the fraction Jenna divided her circle into, and circle all of the figures below that could represent Jenna’s circle.

6. ACT Aspire Practice
15. Which of the following amounts of time is the same as 5 hours?
5 hours 15 minutes
B. 5 hours 35 minutes
C. 5 hours 40 minutes
D. 5 hours 45 minutes
E. 5 hours 75 minutes

7. ACT Aspire Practice
16. Explain what a line of symmetry is. Explain why the dashed line drawn in the figure below is NOT a line of symmetry for the figure.

8. ACT Aspire Practice
17. After Cammy gets out of bed in the morning, she completes several activities to get ready for school. The list below shows the numbers of minutes she needs to complete each of these activities.
30 minutes: brush teeth, shower, and get dressed
10 minutes: eat breakfast
30 minutes: car ride to school
Cammy must be at school by 8:00 a.m. What is the latest time Cammy can get out of bd, complete all her activities, and still get to school on time? Explain why your answer is correct.

9. Homework Check

10. Homework Check

11. Homework Check

12. Homework Check

13. Homework Check

14. Section 13.1 Measures of Central Tendency
R drive > Key > April 13_17 > 4_13__13.1 Measures of Central Tendency File > Save As > P drive > Math > April 13_17 > 4_14__13.1 Measures of Central Tendency

15. Vocabulary
Measures of Central Tendency – Different ways of describing the center of the data
Mean – The sum of the data divided by the number of items in the data set
Median – The middle number of the data ordered from least to greatest
Mode – The number or numbers that occur most often in a data set

16. Example 1 Find Measures of Central Tendency
Find the mean, median, and mode of the data in the table.

17. Example 2 Find Measures of Central Tendency
The snakes at the zoo are 62, 48, 37, 45, 50, 65, 48, 54, 48, 52, 40, and 51 centimeters long. Find the mean, median, and mode of the data.

18. Example 3 – Your Turn Find Measures of Central Tendency
Find the mean, median, and mode of the data in the table.

19. Notes Measure Most Useful When.. Mean Median Mode
Different circumstances determine which measures of central tendency are most appropriate:
Measure
Most Useful When..
Mean
The data have no extreme values (values that are much greater or much less than the rest of the data)
Median
The data have extreme values
There are no big gaps in the middle of the data
Mode
Data have many repeated numbers

20. Example 4 Choose an Appropriate Measure
The table shows daytime high temperatures for the previous week. Which measure of central tendency best represents the data? Then find the measure of central tendency.

21. Example 5 Choose an Appropriate Measure
The table shows the number of sit-ups Pablo had done in one minute for the past 7 days. Which measure of central tendency best represents the data? Justify your selection and then find the measure of central tendency.

22. Example 6 – Your Turn Choose an Appropriate Measure
Mai took a poll in her class to see how many times her classmates visited the local amusement park during summer vacation: 4, 0, 2, 3, 2, 4, 1, 2, 1, 2, 3, 2, 2, 0. What measure of central tendency best represents the data? Then find the measure of central tendency.

23. Example 7 Different Points of View
The average wait times for 10 different rides at an amusement park are 65, 21, 17, 52, 25, 17, 11, 22, 60, and 44 minutes. Which measure of central tendency would the amusement park advertise to show that the wait times for its rides are short? Explain.

24. Example 8 Different Points of View
Maggie had the following times on her runs in the 100-meter dash: 11.6, 11.8, 12.7, 12.6, 11.9, and Which measure of data would she want to use to describe her performance?

25. Homework Section 13.1 #1-7

26. Homework Section 13.1 #1-7