Math Mod Unit 4 Quiz 2
The researcher's opinions are __________ in a presentation.
not included
Giving a(n) __________ would be a good choice for a presentation at a meeting.
oral report
The choice of presentation method is partly based on the __________ of the presentation.
purpose
Did we employ _____ sampling methods?
random
How much did the five 9th-grade students who chose pizza spend in all?
$310
How much did all eight 9th-grade students spend in all?
$364
What was the average amount spent by these 14 students?
$46.57
What was the average amount spent by 10th-grade students?
$48
How much did the three 9th-grade students who chose fruit spend in all?
$54
What was the average amount spent by 9th-grade students?
NOT $80
Note: The researcher reported that he administered the survey to 9th- and 10th-grade friends of his that he was able to contact by telephone on a Saturday afternoon. Was this a random sampling method? Why or why not?
No; The researcher only surveyed those friends who were available by phone on Saturday.
Note: The researcher reported that he administered the survey to 9th- and 10th-grade friends of his that he was able to contact by telephone on a Saturday afternoon. Was the survey biased? Why or why not?
Yes; The researcher only surveyed his friends.
Charts and graphs are ______ in a written report.
necessary
If a visual display is chosen to present research, a bibliography is ________.
necessary
When giving an oral report, a bibliography is __________.
necessary
Why did we choose our method of _____?
data collection
What was the _____ of our data collection?
focus
Were our survey questions _____?
unbiased
A(n) __________ would be a good choice for a bulletin board in a public building.
visual display