School of Computing did a survey on the IQ and the score in a Database test of a sample of 10 students taken from a mixed class. The Database test was marked out of the 50 and the range of IQ values for the class was 80 to 140. Table 3 shows the details of data collected from the survey. Table 3: Score on survey of School of Computing's student A B C D E F G H I J IQ (x) 110 107 127 100 132 130 98 109 114 124 Database Score (y) 26 31 37 20 35 34 23 38 31 36 Student J Based on data given in the Table 3, answer the following questions. a) Identify which correlation coefficient type that suitable to be used for the data represented in Table 3? Justify your answer. b) Calculate the value of correlation coefficient, r between x and y c) Based on your value of the correlation coefficient, r obtained in (4-b), make a conclusion on the relationship between the IQ level and the score of Database test.
School of Computing did a survey on the IQ and the score in a Database test of a sample of 10 students taken from a mixed class. The Database test was marked out of the 50 and the range of IQ values for the class was 80 to 140. Table 3 shows the details of data collected from the survey. Table 3: Score on survey of School of Computing's student A B C D E F G H I J IQ (x) 110 107 127 100 132 130 98 109 114 124 Database Score (y) 26 31 37 20 35 34 23 38 31 36 Student J Based on data given in the Table 3, answer the following questions. a) Identify which correlation coefficient type that suitable to be used for the data represented in Table 3? Justify your answer. b) Calculate the value of correlation coefficient, r between x and y c) Based on your value of the correlation coefficient, r obtained in (4-b), make a conclusion on the relationship between the IQ level and the score of Database test.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
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Transcribed Image Text:School of Computing did a survey on the IQ and the score in a Database test of a sample of 10
students taken from a mixed class. The Database test was marked out of the 50 and the range
of IQ values for the class was 80 to 140. Table 3 shows the details of data collected from the
survey.
Table 3: Score on survey of School of Computing's student
A B
C D E
F
110
107
127
100
132 130
26 31
37 20
35
34
Student
IQ (x)
Database Score (y)
G
98
23 38 31
b) Calculate the value of correlation coefficient, r between x and y
H
I
109 114 124
36
Based on data given in the Table 3, answer the following questions.
a) Identify which correlation coefficient type that suitable to be used for the data represented
in Table 3? Justify your answer.
c) Based on your value of the correlation coefficient, r obtained in (4-b), make a conclusion
on the relationship between the IQ level and the score of Database test.
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