Hi, I would appreciate if you could help me with these questions please.

Thank you so much in advance.

EXAMPLE 3. Sam is interested in predicting the amount of time it takes him to write a report (minutes) based on its word count. He randomly selects 7 reports and records the amount of time it took him to write each report and the corresponding word count. Given the following table of additional information: 1,606 1909 1,222,691 130,988 Dial(* - 2)(1; - 7) 298,909 Identify, in words, the dependent variable. O a. X = a report's word count O b. Y = a report's word count O c. Y = amount of time it takes Sam to write a report (minutes) O d. X = amount of time it takes Sam to write a report (minutes) Calculate the standard deviation of X. O a. 494.5080 O b. 417.9356 O c. 390.9429 O d. None of the other choicesFind the correlation coefficient between X and Y. O a. None of the other choices O b. 0.8410 O c. 0.6402 O d. 0.7469 What is the direction of the linear association? O a. None of the other choices O b. Weak O c. Strong O d. Moderate Calculate the coefficient of determination. O a. 0.5579 b. None of the other choices O c. 0.4099 O d. 0.7073 Determine the least squares regression equation. O a. y = 516.3330 + 0.2445r O b. y = -2755.8231 + 2.282r O c. y = 1383.7785 + 0.2445. O d. g = -468.299 + 2.282x