Unit 5 Inferences Review
Authored by Venus Leonard
Mathematics
7th Grade
CCSS covered
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22 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
_______ is a part of a group being surveyed.
Tags
CCSS.7.SP.A.1
CCSS.HSS.IC.A.1
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
_________ is a sample in which each individual or object in the entire population has an equal chance of being selected.
Tags
CCSS.HSS.IC.B.3
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
_______ is the entire group of objects or individuals considered for a survey.
Tags
CCSS.7.SP.A.1
CCSS.HSS.IC.A.1
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A school surveys all 7th grade boys to determine what to sell in the school store. This sample is _________.
Tags
CCSS.7.SP.A.1
CCSS.HSS.IC.A.1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A student wants to know which type of pizza the students at his high school prefer. Which option would give a unbiased, representative sample:
Tags
CCSS.7.SP.A.1
CCSS.HSS.IC.A.1
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The TV station wants to get the opinion of viewers on the look of a new game-show set. The station's staff calls random people in the phone book. Is this biased or unbiased?
Tags
CCSS.RL.11-12.6
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
There are 400 students at Polly's school. She surveyed a random sample of 80 students to find their favorite hobby. 19 said they like to read. 30 said they like to be with friends. 8 said they like to do crafts. 23 said they like to play sports. Polly infers that doing crafts is the least popular hobby at her school.
Yovani estimates that about 200 students in the school favor playing sports as a hobby. Do you agree?
Yes, I used a proportion to find the number of students in the school who likely to prefer to play sports. 23/80 = 200/400; 200 students
No, I used a proportion to find the number of students in the school who likely to prefer to play sports. 23/80 = 115/400; 115 students
Tags
CCSS.7.SP.A.2
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