The table shows the marks (out of 20) in English language and chemistry obtained by different students selected at random from a large group of students. English language 11 7 12 8 15 18 19 20 chemistry 12 9 15 10 17 17 17 18 a. Determine the slope coefficient B1 for the regression of chemistry marks on marks English language marks. Answer rounded to three decimal places. b. Determine the y-intercept Bo for the regression of chemistry marks on marks English language marks. Answer rounded to two decimal places. c. If one student got 14 marks in English language, then what would be the predicted mark in chemistry for that student? Answer rounded to two decimal places.

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The table shows the marks (out of 20) in English language and chemistry obtained by different students selected at random from a large group of
students.
English language
11
7
12
8
15
18
19
20
chemistry
12
15
10
17
17
17
18
a. Determine the slope coefficient B1 for the regression of chemistry marks on marks English language marks.
Answer rounded to three decimal places.
b. Determine the y-intercept Bo for the regression of chemistry marks on marks English language marks.
Answer rounded to two decimal places.
c. If one student got 14 marks in English language, then what would be the predicted mark in chemistry for that student?
Answer rounded to two decimal places.
d. What percentage of the variation in chemistry marks is explained by the regression model?
Answer either in percentage or as a decimal (eg: 15.25%, or 0.1525)
Transcribed Image Text:The table shows the marks (out of 20) in English language and chemistry obtained by different students selected at random from a large group of students. English language 11 7 12 8 15 18 19 20 chemistry 12 15 10 17 17 17 18 a. Determine the slope coefficient B1 for the regression of chemistry marks on marks English language marks. Answer rounded to three decimal places. b. Determine the y-intercept Bo for the regression of chemistry marks on marks English language marks. Answer rounded to two decimal places. c. If one student got 14 marks in English language, then what would be the predicted mark in chemistry for that student? Answer rounded to two decimal places. d. What percentage of the variation in chemistry marks is explained by the regression model? Answer either in percentage or as a decimal (eg: 15.25%, or 0.1525)
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