Question

(11) When two variables are measured on a single experimental unit, the resulting data are called bivariate data. (1) True. (2) False. (12) Two datasets (S1, and Sy) are illustrated via scatterplots. Dataset S has a correlation coefficient rı = 0.95. For dataset S, the correlation coefficient r2 = -0.95. Which of the following statements is true? (1) Correlation coefficient r2 does not indicate a linear relationship. (2) In both scatterplots, there is no clearly discernible linear pattern. (3) Both scatterplots show a relatively strong linear pattern. (4) The scatterplot of dataset S2 shows a non-linear pattern. Problem C: Many smartwatches allow individuals to track their fitness. In a study, a user recorded the number of steps () taken per day versus the calories (y) burned during this activity. Over a period of 7 days, the user generated the following summary information: n=7, Sri = 29500, y = 1328, riyi = 5732550, 8z = 715.2, and sy = 32.2. ---- (13) Refer to Problem C. Calculate the correlation coefficient r for this dataset. (1) -0.984 (3) -0.566 (2) 0.984 (4) 0.566 -(14) Refer to Problem C. Calculate the slope of the least-squares regression line for this dataset. (1) 0.044 (2) -0.044 (3) 2.3 (4) -2.3 -(15) Refer to Problem C. If the person took 4000 steps on a particular day, how many calories would you predict the person to burn? (1) About 100. (3) About 50. (2) About 2000 (4) About 180.

Answer 1

Please don't hesitate to give a "thumbs up" for the answer in case the answer has helped you

11.

The result when two variables are measured on a single experimental unit then the resulting data is
bivariate i.e. 2 data points one x and the other y

Answer: TRUE