
6-2 Additional Vocabulary Support
Authored by Kemisha Thompson
Mathematics
7th Grade
CCSS covered

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7 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Use the words in the list to complete the sentences below. (inference, invalid, valid) 1. A(n) __________ is a judgment made by interpreting data.
inference
conclusion
assumption
prediction
Tags
CCSS.L.6.6
CCSS.L.7.6
CCSS.L.8.6
CCSS.W.7.2D
CCSS.W.8.2D
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
An inference that is based on a representative sample is __________.
valid
biased
random
invalid
Tags
CCSS.L.6.6
CCSS.L.7.6
CCSS.L.8.6
CCSS.W.7.2D
CCSS.W.8.2D
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
An inference that does not represent the population is __________.
invalid
accurate
representative
reliable
Tags
CCSS.L.6.6
CCSS.L.7.6
CCSS.L.8.6
CCSS.W.7.2D
CCSS.W.8.2D
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
For each situation write valid or invalid. Sample: 10 randomly selected shoppers at a vitamin store are surveyed. Survey Results: 3 shoppers need potassium supplements. Inference: About 30% of all people need potassium supplements. Is this inference valid or invalid?
valid
invalid
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
For each situation write valid or invalid. Sample: 50 randomly selected seventh-grade students at East Middle School are surveyed. Survey Results: 5 students wear glasses. Inference: About 10% of all seventh-grade students at East Middle School wear glasses. Is this inference valid or invalid?
valid
invalid
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
For each situation write valid or invalid. Sample: 5 randomly selected students in a homeroom try to wiggle their ears. Survey Results: 2 students in the sample can wiggle their ears. Inference: About 40% of the students in the homeroom can wiggle their ears. Is this inference valid or invalid?
valid
invalid
Tags
CCSS.HSS.IC.B.3
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
For each situation write valid or invalid. Sample: 20 randomly selected cell phones from one shipment are tested. Survey Results: 1 cell phone in the sample is defective. Inference: About 5% of all cell phones are defective. Is this inference valid or invalid?
valid
invalid
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