Question 9 3 pts Here is a M Ego a data set comparing proficiency in a second language to the density of grey matter in the human brain. What is the correlation coefficient for these data? Use either the =correl(array1,array2) formul in excel, or the correlation feature in the Data Analysis ToolPak Add-in for Excel to determine the correlation coefficient. Report your answer to four decimal places. Question 10 1.5 pts Based on the calculated correlation coefficient in the problem concerning the correlation of grey matter density and proficiency in a second language, how would you describe the correlation? 0 strong positive 0 strong negative 0 weak positive 0 weak negative 0 No correlation Question 11 1.5 ts p Based on the correlation analysis performed on the density of grey matter and proficiency in a second language, which of the following statements are reasonable conjectures? (select all correct answers) C] People that are proficient in multiple languages will have denser grey matter than people who are not proficient in a second language. C] People that are proficient in multiple languages will have less dense grey matter than people that are not proficient in a second language. C] People that are only proficient in one language will have denser grey matter than people who are proficient in a second language. C] People that are only proficient in one language will have less dense grey matter than people who are proficient in a second language. A1 fx Subject A B C D 1 Subject 2nd Languagerey Matter Density 2 0.26 -0.07 3 2 0.44 -0.08 4 3 0.89 -0.008 5 4 1.26 -0.009 6 5 1.69 -0.023 6 1.97 -0.009 8 1.98 -0.036 9 8 2.24 -0.029 10 9 2.24 -0.008 11 10 2.58 -0.023 12 11 2.5 -0.006 13 14 3.85 0.022 14 15 3.04 0.018 15 16 2.55 0.023 16 17 2.5 0.022 17 18 3.11 0.036 18 19 3.18 0.059 19 20 3.52 0.062 20 21 3.59 0.049