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AP U.S. Government 1.1 Institutions of National Government. What was the scale of representation in the House of Representatives when the Constitut...
AP U.S. Government 2.2 Public Policy. What did the Budget Impoundment Control Act do?
AP U.S. Government 2.3 Civil Rights and Liberties. Classifications based on sexual orientation receive...what?
AP U.S. Government 1.5 Political Beliefs and Behaviors 224 Views
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AP U.S. Government 1.5 Political Beliefs and Behaviors. In what sort of poll must every member within the universe have an equal probability of being surveyed?
Transcript
- 00:00
Thank you We sneak and here's your shmoop too sure
- 00:05
brought to you by random samples We'd prefer to choose
- 00:08
ours but we're not ones to turn down free food
- 00:11
Always been a taste wishbone right in what sort of
- 00:14
pole must every member within the universe have an equal
Full Transcript
- 00:17
probability of being surveyed and hear the potential answers Right
- 00:23
Okay well when it comes to pulling the more people
- 00:25
we survey the more likely the opinions of the group
- 00:27
will match the opinions of the universe as a whole
- 00:30
Try that one on for equally representational size Goldie locks
- 00:37
Alright what all individuals have an equal probability of being
- 00:40
surveyed in be an exit poll Well exit polls are
- 00:42
conducted after we've voted so we'd only be capturing individuals
- 00:46
participating in their civic duty that gives us access to
- 00:49
only the brightest stars in the red white and blue
- 00:51
Would we obtain an equally representative sample in c A
- 00:55
tracking poll Well tracking polls are designed to monitor change
- 00:58
over time like for a presidential approval rating And while
- 01:01
those surveyed might be random it's not absolutely required though
- 01:05
the chances for cr well trending negative can we get
- 01:08
a perfectly random distribution indy an opt in poll Well
- 01:12
equally representative poles need to ensure that everyone has a
- 01:15
well equal chance of being surveyed Opt in polls however
- 01:19
have a built in barrier as the on ly people
- 01:21
answering choose to participate What about e A quota sample
- 01:25
poll will quote a sample Polls target very specific groups
- 01:28
of people like red heads or people who own flying
- 01:31
squirrels as pets So there's no way in the well
- 01:34
universe that we'd obtained a perfectly random sample Hey rocky
- 01:38
watch me pull a rabbit out of the head Flying
- 01:41
squirrel bullwinkle remember him which means that all individuals would
- 01:45
have an equal probability of being surveyed in a a
- 01:48
random sample poll when we want to pull that accurately
- 01:52
captures how the entire population feels about a certain political
- 01:55
issue like access to healthcare A random sample poll is
- 01:58
the way to go Random samples are designed to be
- 02:01
representative of the entire group were trying to learn about
- 02:04
and give all individuals in the population a supposedly equal
- 02:07
chance of being surveyed The option is the correct answer
- 02:11
If we don't have a random sample our data might
- 02:13
be compromised in some way which means we'd have to
- 02:16
start all over So let's Stick with the random sample 00:02:18.95 --> [endTime] It'd really biased sometime in the long run
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