Which sample would best represent the population of the four cities?

100 people selected from the phone directories for each city

Which sample would best represent all the students at a school?

75 students randomly chosen from a list of all students

Which sample would most likely have bias?

25 Olympic athletes to represent all people

Answer the following question.

taking 10 samples at random from each store

Ty estimates next years revenues to be $25 million. How would you evaluate his estimate?

This is a bad estimate b/c it's very different from given #s

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TABE Review: Probability and Statistics

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TABE Fundamentals Applied Math Level D

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Questions 8

Answers

1
Which sample would best represent the population of the four cities?
100 people selected from the phone directories for each city
callers to a radio program broadcast to the cities
10 people on a street in East City
the members of the city councils of the four cities
2
Which is a good estimate of the revenues of the state in an average year?
$16 million
$8 million
$11 million
$19 million
3
Which sample would best represent all the students at a school?
25 members of the honor society
75 students randomly chosen from a list of all students
50 members of the football team
100 students in the school parking lot
4
Which number would be a good estimate for the price of Snorgols, according to the table?
$1.35
$10.24
$2.30
$0.75
5
Which number gives the mean of the populations on the table?
1,920
734
2,191
7,680
6
Which sample would most likely have bias?
50 boxes of cereal from a warehouse
25 Olympic athletes to represent all people
30 people selected at random walking the streets of a town
100 voters selected at random from a phone directory
7
Answer the following question.
getting samples from the factorys Quality Control Department
taking 10 samples at random from each store
asking your friends for any Snorgols they have purchased
collect Snorgol returns to Customer Service with complaints
8
Ty estimates next years revenues to be $25 million. How would you evaluate his estimate?
This is a good estimate b/c it's the total of years 4 and 5
This is a good estimate because it is more than year 5.
This is a bad estimate b/c revenues go down in even # years
This is a bad estimate b/c it's very different from given #s

TABE Review: Probability and Statistics Flashcards | StudBud