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# Test audiences screened five 3-minute previews of a certain movie.

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Re: Test audiences screened five 3-minute previews of a certain movie. [#permalink]
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suminha wrote:
Attachment:
IR.jpg

Test audiences screened five 3-minute previews of a certain movie. The movie contains both drama and comedy, but the previews were customized to show differing percentages of comedic and dramatic scenes (measured by screen time). The test audiences were asked, Do you think the preview is funny? and How likely are you to see the movie on the weekend it opens? The position of the center of each bubble indicates the percent of comedy (C) in the previews and the percent of test audience members who found the previews funny (F), and the greater the bubble’s size the greater the average reported likelihood (L) of their seeing the movie on the opening weekend.

Select the option from each drop-down menu that creates the most accurate statement on the basis of the information provided.

1. If the same previews were shown to other test audiences, ____________ could differ from the results shown.

A. only C
B. only C and F
C. C, F, and L
D. only F
E. only F and L
F. only L

the percent of comedy in the previews - C
the percent of test audience members who found the previews funny - F, and
likelihood of their seeing the movie on the opening weekend - L.

Now, what is remaining the same ? - the previews, so the content of comedy and drama will remain the same. NO change in C or Drama.
What is changing? - test audiences, so anything related to audiences can change. Thus, change in F and L.

E

Quote:
2. Let D equal the percent of drama in each preview. Assuming each preview is made up entirely of comedy and drama (such that C + D = 100), there is __________ correlation between D and F.

A. a positive
B. a negative
C. no

Since C+D=100, the moment one increases, the other decreases. SO negative correlation.

B
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Re: Test audiences screened five 3-minute previews of a certain movie. [#permalink]
chetan2u
There will be a negative correlation because the total remains 100.
So if one increases, the other will decrease.
Am I correct in my reasoning?

Thanks
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Re: Test audiences screened five 3-minute previews of a certain movie. [#permalink]
chetan2u wrote:
suminha wrote:
Attachment:
IR.jpg

Test audiences screened five 3-minute previews of a certain movie. The movie contains both drama and comedy, but the previews were customized to show differing percentages of comedic and dramatic scenes (measured by screen time). The test audiences were asked, Do you think the preview is funny? and How likely are you to see the movie on the weekend it opens? The position of the center of each bubble indicates the percent of comedy (C) in the previews and the percent of test audience members who found the previews funny (F), and the greater the bubble’s size the greater the average reported likelihood (L) of their seeing the movie on the opening weekend.

Select the option from each drop-down menu that creates the most accurate statement on the basis of the information provided.

1. If the same previews were shown to other test audiences, ____________ could differ from the results shown.

A. only C
B. only C and F
C. C, F, and L
D. only F
E. only F and L
F. only L

the percent of comedy in the previews - C
the percent of test audience members who found the previews funny - F, and
likelihood of their seeing the movie on the opening weekend - L.

Now, what is remaining the same ? - the previews, so the content of comedy and drama will remain the same. NO change in C or Drama.
What is changing? - test audiences, so anything related to audiences can change. Thus, change in F and L.

E

Quote:
2. Let D equal the percent of drama in each preview. Assuming each preview is made up entirely of comedy and drama (such that C + D = 100), there is __________ correlation between D and F.

A. a positive
B. a negative
C. no

Since C+D=100, the moment one increases, the other decreases. SO negative correlation.

B

­As you said, it seems like the correlation is between C vs D, but in question it is asked F vs D. How is it negative correlation then.??
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Re: Test audiences screened five 3-minute previews of a certain movie. [#permalink]
Apeksha2101 wrote:
chetan2u wrote:
suminha wrote:
Attachment:
IR.jpg

Test audiences screened five 3-minute previews of a certain movie. The movie contains both drama and comedy, but the previews were customized to show differing percentages of comedic and dramatic scenes (measured by screen time). The test audiences were asked, Do you think the preview is funny? and How likely are you to see the movie on the weekend it opens? The position of the center of each bubble indicates the percent of comedy (C) in the previews and the percent of test audience members who found the previews funny (F), and the greater the bubble’s size the greater the average reported likelihood (L) of their seeing the movie on the opening weekend.

Select the option from each drop-down menu that creates the most accurate statement on the basis of the information provided.

1. If the same previews were shown to other test audiences, ____________ could differ from the results shown.

A. only C
B. only C and F
C. C, F, and L
D. only F
E. only F and L
F. only L

the percent of comedy in the previews - C
the percent of test audience members who found the previews funny - F, and
likelihood of their seeing the movie on the opening weekend - L.

Now, what is remaining the same ? - the previews, so the content of comedy and drama will remain the same. NO change in C or Drama.
What is changing? - test audiences, so anything related to audiences can change. Thus, change in F and L.

E

Quote:
2. Let D equal the percent of drama in each preview. Assuming each preview is made up entirely of comedy and drama (such that C + D = 100), there is __________ correlation between D and F.

A. a positive
B. a negative
C. no

Since C+D=100, the moment one increases, the other decreases. SO negative correlation.

B

­As you said, it seems like the correlation is between C vs D, but in question it is asked F vs D. How is it negative correlation then.??

­In the given graph, C and F are positively correlated. Since C+D=100 (if C increases then D decreases), F and D will also be negatively correlated.
Re: Test audiences screened five 3-minute previews of a certain movie. [#permalink]
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