SWBAT determine appropriate samples to make predictions about populations
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Question 1
1.
On Your Own--Create your own example of a population characteristic. Be ready to share with your partner!
Use our mini lesson examples (A, B, C, D) if you need inspiration.
Suggested topics to write about: a group of people's favorite video games, heights, grades, etc.
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Question 2
2.
On Your Own--Create your own example of a sample statistic. Be ready to share with your partner!
Use our mini lesson examples (A, B, C, D) if you need inspiration.
Suggested topics to write about: a group of people's favorite video games, heights, grades, etc.
If you are done early, make sure you are able to explain WHY one is a population characteristic and why one is a sample statistic.
**Please wait for us to move onto Independent Practice together**
IP
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Question 3
3.
Recess--Mr. Mancini wants to know what percent of all Prize students want extended recess. According to his survey of the Marshalls, 100% want extended recess.
Is this a population characteristic or sample statistic? Explain how you know.
"I can tell this is a... because..."
CFS:
#1: Accurately determines who are what is in the population
#2: Accurately determines if data is from the entire population or a subset
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Question 4
4.
NYC--According to the New York state census (which every citizen answers), 84.6% of people living in the city have at least a high school education.
Is this a population characteristic or sample statistic? Explain how you know.
"I can tell this is a... because..."
CFS:
#1: Accurately determines who are what is in the population
#2: Accurately determines if data is from the entire population or a subset
1 point
1
Question 5
5.
Sort--Decide whether each scenario is describing a population characteristic or a sample statistic.
Be ready to discuss and cite evidence.
Angelina wants to know the average height of all teachers at Prize. After spending 2 hours interviewing each of the 20 teachers, she finds that the average height is 5 feet 8 inches.
A researcher collected data from every apartment in San Jose to find the average price of a 1-bedroom rental.
Daniel wants to know the favorite food of all teachers at Prize. He asks the 7th grade teachers and finds that they prefer Mac and Cheese.
35 college students who participated in a university research project said they sleep an average of 6.5 hours per night. This was published in a paper to describe the sleep habits of American college students.
Population Characteristic
Sample Statistic
Survey Time--For the next two problems, explain how you would gather data from a sample to answer a question about the population.
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Question 6
6.
Life of Pets--"What is the average number of pets for families that live in San Jose?"
How would you gather sample data to answer this question? (What question would you ask? Who would you ask?)
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Question 7
7.
GPA--"What is the average high school GPA of students attending San Jose State University?"
How would you gather sample data to answer this question? (What question would you ask? Who would you ask?)
SPICY (optional)
The following are SBAC ATTACK review problems. You only have to do them if you finished up to question 7 early.
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Question 8
8.
Sibling Statistics--Each student in a class of 38 students was asked to report how many siblings (brothers/sisters) they have. The data are summarized in the table below.
Based on the data, estimate the probability that a randomly selected student from the class has three or more siblings. (You can leave your answer as a fraction or percent)
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Question 9
9.
Foto--Martin put a picture in a rectangular frame measuring 20 cm by 12 cm. The area enclosed by the frame is 84 square centimeters.
Which equation shows how you could find x, the uniform width of the frame in centimeters?
Awesome job! Practice new statistics skills on IXL or any other recommended skill.
**Wait until we move onto the Exit Ticket as a class**
ET
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Question 10
10.
7 Mile--Mr. Hernandez needs to record the mile time of every 7th grader at Prize for the California Fitness Exam. He gathers data from each student in the three homerooms and finds that the average mile time is 8 minutes and 45 seconds.
Is this a population characteristic or sample statistic? Explain how you know.
"I can tell this is a... because..."
CFS:
#1: Accurately states whether a trait is a population characteristic or sample statistic