3. A professor wants to research about correlation between their students' performance and time spent on watching web-series. The professor asked 7 students about how many hours per week they spent on watching web-series and their grades in the last test. Following plot indicates the findings of this survey. 10.} so ."--...'.___I = - 3.4433! + 96.202 R2 = 0.9353 . so 10 so 50 - - o 40 so 20 10 g _ U 2 4 6 8 1t] 12 1 III- Using above chart, answer the following questions. a) Find the value of the coefficient of correlation, rounded to three decimals. [ 1 mark] b) Using this model. if a student spent 8 hoursfweek on watching web-series, what would be their score on the test, rounded to two decimals? [1 mark]