7th Math 5.14
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Last updated over 2 years ago
8 questions
IP
1
Games--Yamila wants to know how many hours of video games middle schoolers in Northern California play. She sends a google form to 10 boys and 10 girls at each of KIPP’s 15 Bay Area schools. She finds that they play an average of 2.5 hours a day.
Is this a representative sample? Explain why or why not. Is there anything Yamila can change to make the sample MORE representative?
"This (is / is not) a representative sample because..."
CFS:#1: Makes an accurate claim for whether or not the sample is representative#2: Provides relevant evidence
Games--Yamila wants to know how many hours of video games middle schoolers in Northern California play. She sends a google form to 10 boys and 10 girls at each of KIPP’s 15 Bay Area schools. She finds that they play an average of 2.5 hours a day.
Is this a representative sample? Explain why or why not.
Is there anything Yamila can change to make the sample MORE representative?
"This (is / is not) a representative sample because..."
CFS:
#1: Makes an accurate claim for whether or not the sample is representative
#2: Provides relevant evidence
1
Real Estate--Mr. Hwung wants to use samples to predict the average house price in California. He only has time to check the prices of 10 homes in San Francisco and 10 homes in San Jose and finds that the average price is $1.2 million.
Is this a representative sample? Explain why or why not.Is there anything Mr. Hwung can change to make the sample MORE representative?
"This (is / is not) a representative sample because..."
CFS:#1: Makes an accurate claim for whether or not the sample is representative#2: Provides relevant evidence
Real Estate--Mr. Hwung wants to use samples to predict the average house price in California. He only has time to check the prices of 10 homes in San Francisco and 10 homes in San Jose and finds that the average price is $1.2 million.
Is this a representative sample? Explain why or why not.
Is there anything Mr. Hwung can change to make the sample MORE representative?
"This (is / is not) a representative sample because..."
CFS:
#1: Makes an accurate claim for whether or not the sample is representative
#2: Provides relevant evidence
1
SBAC ATTACK Geometry--This is some quick review. Try your best!
Triangle B is a scale drawing of Triangle A.
a) What is the scale factor?
b) What is the length of the side labeled x?
SBAC ATTACK Geometry--This is some quick review. Try your best!
Triangle B is a scale drawing of Triangle A.
a) What is the scale factor?
b) What is the length of the side labeled x?
1
Presidential--A newspaper wants to estimate the probability that Mr. Mancini will win the presidential election in 2024. The newspaper conducts a survey of 10,000 people in California to see who they plan to vote for.
Is this a representative sample? Explain why or why not.
"This (is / is not) a representative sample because..."
CFS:#1: Makes an accurate claim for whether or not the sample is representative#2: Provides relevant evidence
Presidential--A newspaper wants to estimate the probability that Mr. Mancini will win the presidential election in 2024. The newspaper conducts a survey of 10,000 people in California to see who they plan to vote for.
Is this a representative sample? Explain why or why not.
"This (is / is not) a representative sample because..."
CFS:
#1: Makes an accurate claim for whether or not the sample is representative
#2: Provides relevant evidence
1
Heights--A research lab wants to know whether a new type of medicine can help young teens around the world grow taller. The medicine was given to 10 Swedish boys and the researchers found that it was effective since they all ended up being over 6 feet tall.
Is this a representative sample? Explain why or why not.
"This (is / is not) a representative sample because...
CFS:#1: Makes an accurate claim for whether or not the sample is representative#2: Provides relevant evidence
Heights--A research lab wants to know whether a new type of medicine can help young teens around the world grow taller. The medicine was given to 10 Swedish boys and the researchers found that it was effective since they all ended up being over 6 feet tall.
Is this a representative sample? Explain why or why not.
"This (is / is not) a representative sample because...
CFS:
#1: Makes an accurate claim for whether or not the sample is representative
#2: Provides relevant evidence
1
BE CREATIVE--Think of a research question or prediction you would like to make about a group of people.
a) What would you like to know? (for example, a group of people's favorite color, TV show, how much time they spend on their phone/apps, etc)
"a) I would like to know ______________ for all (Prize students / people in San Jose / Americans, etc.)"
b) Who would you gather data from to make a representative sample?
"b) To make a representative sample, I would ask..."
BE CREATIVE--Think of a research question or prediction you would like to make about a group of people.
a) What would you like to know? (for example, a group of people's favorite color, TV show, how much time they spend on their phone/apps, etc)
"a) I would like to know ______________ for all (Prize students / people in San Jose / Americans, etc.)"
b) Who would you gather data from to make a representative sample?
"b) To make a representative sample, I would ask..."
0
Real Time Survey--WAIT for instructions to complete this question.
Your teacher will conduct a survey in real time. You should answer for yourself, then make a prediction for the average in your class/grade.
On average, what is your hours of screen time on the weekend? (Screen time meaning time on a phone, computer, TV, video game console, or any other electronic device where you watch stuff)
Real Time Survey--WAIT for instructions to complete this question.
Your teacher will conduct a survey in real time. You should answer for yourself, then make a prediction for the average in your class/grade.
On average, what is your hours of screen time on the weekend?
(Screen time meaning time on a phone, computer, TV, video game console, or any other electronic device where you watch stuff)
ET
4
Polling--Mr. Hwung wants to predict if a Democrat or a Republican will receive the most votes in the country's presidential election in 2024. He surveys 100 people in Santa Clara and finds that 71% of people plan to vote for the Democratic candidate.
Is this data representative for the national election? Explain why or why not.
"This (is / is not) a representative sample because..."
CFS:#1: Makes an accurate claim for whether or not the sample is representative#2: Provides relevant evidence
Polling--Mr. Hwung wants to predict if a Democrat or a Republican will receive the most votes in the country's presidential election in 2024. He surveys 100 people in Santa Clara and finds that 71% of people plan to vote for the Democratic candidate.
Is this data representative for the national election? Explain why or why not.
"This (is / is not) a representative sample because..."
CFS:
#1: Makes an accurate claim for whether or not the sample is representative
#2: Provides relevant evidence