Topic #6 Integrated Math Review Use Sampling to Draw Inferences About Populations
Authored by Stephanie Horvat
Mathematics
6th - 8th Grade
CCSS covered
Used 29+ times
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28 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To determine if my students like Math, I surveyed every 3rd student that walked into my classroom. Identify the sample as biased or unbiased.
unbiased sample
biased sample
Tags
CCSS.7.SP.A.1
CCSS.HSS.IC.A.1
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
To determine how many students at Shull would attend the dance, the principal surveyed the students in Ms. Miller's math class. 10 students said they would attend and 15 said they would not attend. It can be concluded that half the students at Shull will attend the dance. Is this conclusion valid? Why?
Yes, this is a simple random sample. So the sample is unbiased.
No, this is a convenience sample. So the sample is unbiased.
No, this is a voluntary response sample. So the sample is biased.
No, this is a convenience sample. So the sample is biased.
Tags
CCSS.7.SP.A.1
CCSS.HSS.IC.A.1
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The Student Council asked every tenth student in the lunch line how they preferred to be contacted with school news. The results are shown in the table. Is this an unbiased sample? If yes, suppose there are 684 students at the school. How many can be expected to prefer E-mail?
No, it's a biased sample
432
304
16
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A sample of the Ben & Jerry's employees took a survey on their favorite flavor of ice cream. The table shows how many employees voted for each flavor. What is the probability that an employee voted for Cookies and Cream?
35 / 125
35 / 730
35 / 19
14 / 35
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Anthony opened a new store and wants to conduct a survey to determine the best store hours. Which is the best representative sample?
A group of randomly selected people who come to the store in one week.
A group of randomly selected people who visit his website on one night.
Every person he meets at his health club one night.
The first 20 people who walk into his store one day.
Tags
CCSS.7.SP.A.1
CCSS.7.SP.A.2
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The two data sets show the number of days that team members trained before a 5k race. What inference can you draw by comparing the median?
There is more variability in the number of days that Team A members trained because the IQR for Team A is greater than the IQR for Team B.
There is more variability in the number of days that Team B members trained because the IQR for Team B is greater than the IQR for Team A.
Team A members generally trained for more days than Team B members
Team B members generally trained for more days than Team A members
Tags
CCSS.7.SP.B.4
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What inference can you draw by comparing the interquartile ranges?
There is more variability in the number of days that Team A members trained because the IQR for Team A is greater than the IQR for Team B.
There is more variability in the number of days that Team B members trained because the IQR for Team B is greater than the IQR for Team A.
Team A members generally trained for more days than Team B members
Team B members generally trained for more days than Team A members
Tags
CCSS.7.SP.B.4
CCSS.7.SP.B.3
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