The histogram shows the distribution of the scores on a statistics exam in a large class of 70 students. Which statement below is most accurate in describing the center of the distribution?A. The median should be used to describe the center. The data is skewed, so the middle outcome more accurately describes the typical exam score. B. The median should be used to describe the center, because it is halfway between the largest and smallest exam scores. C. The mean should be used to describe the center because the data is not symmetric. D. The mean should be used because it may produce a decimal value which is more accurate.

Ascientist studied a population of workers to determine whether verbal praise and/or tangible rewards affect employee productivity. in the study, some workers were offered verbal praise, some were offered tangible rewards (gift cards, presents, and some were offered neither. the productivity of each participant was measured throughout the study by recording the number of daily tasks completed by each employee. which inference might the scientists make based on the given information? a.) the number of daily tasks completed by each employee may influence the dependent variable, which is whether the employee receives verbal praise, tangible rewards, or neither. b.) verbal praise and/or tangible rewards may influence the independent variable, which is the number of daily tasks completed by each employee. c.) verbal praise and/or tangible rewards may influence the dependent variable, which is the number of daily tasks completed by each employee. d.) the dependent variables, which are verbal praise and tangible rewards, may influence the number of daily tasks completed by each employee.