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Exam 2 Review Problems - KEY

# Exam 2 Review Problems - KEY - Question 1 Amoun t Studied L...

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Question 1 Amoun t Studied L M H Grade C 2 67% 1 25% 0 100% 3 30% B 1 33% 2 50% 1 33% 4 40% A 0 0% 1 25% 2 67% 3 30% 3 100% 4 100% 3 100% 10 100% Question 2 Gamma = .83 Interpretation: Based on those individuals surveyed there is a positive relationship between a high level of studying and earning a good grade. Meaning that the amount you study directly impacts the grade you will earn. Question 3 IV – Time Spent on Facebook DV – Dates in the past year Interpretation: Of the people who spent a significant (high) amount of time on Facebook in this survey, none of them were likely to have a high frequency of dates in the past year, while 67% of people who spent a significant amount of time on Facebook were likely to a low frequency of dates in the past year. Question 4 Covariance = 1065.3 Interpretation: There is a positive relationship between listening to dance music and IQ -- meaning the more you listen to dance music, the higher your IQ. Question 5 R = .938 Interpretation: There is a strong positive relationship between the amount of dance music you listen to and your IQ.

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