Bid Ideas Math Ch. 8 Test Review
Flashcard
•
Mathematics
•
7th Grade
•
Practice Problem
•
Easy
Betty Rochon
Used 1+ times
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8 questions
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1.
FLASHCARD QUESTION
Front
Is the sample biased when you survey every fourth student who enters the school to estimate support for extra funding for the history club?
Back
No, because the sample size is large and random.
2.
FLASHCARD QUESTION
Front
Is the conclusion that 60% of the students in your school have visited a theater valid based on a survey of 35 students where 21 have visited a theater and 14 have not?
Back
Yes, because 21/35 is 60%. More than half have visited a theater.
3.
FLASHCARD QUESTION
Front
Estimate the number of students in your school who prefer rock music based on a sample survey.
Back
200 students
4.
FLASHCARD QUESTION
Front
Estimate the mean number of sick days taken by students in your county last year based on a survey of ten students from each of five schools.
Back
4.36 days
5.
FLASHCARD QUESTION
Front
You want to know the average weight of a potato from Idaho. Should you survey the population or a sample?
Back
Sample
6.
FLASHCARD QUESTION
Front
Does a sample with a 6:10 ratio of students who own a bike to those who do not closely estimate the 60% of students in your school who own a bike?
Back
No, it underestimates
7.
FLASHCARD QUESTION
Front
Compare two data sets using measures of center and variation based on a double box-and-whisker plot.
Back
Set A has a greater measure of center and Set B has a greater measure of variation.
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