A researcher asked 520 randomly selected people of three different age groups (teen, young adult, and
adult) about their favorite music genre. The two-way
table displays the distribution of the responses.
A participant is randomly selected. Let C be the event
that the participant prefers country music and let T be
the event that the participant is a teen. What is the
value of PC or T)?
0.12
Teen
Adult
0.33
0.55
Age
Young
Adult
65
84
36
Country
Rock
Oldies
Music
61
94
15
49
54
62
0.66

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.