Please I need this right now!! :( 1. a) 1/5
b) 5/30
c) 9/30
d) 4/5

2. Natalie is playing a game using a fair coin. Contestants win the game if the fair coin lands tails up. The theoretical probability the the coin will land tails up _.
a) 0
b) 0.25
c) 0.5
d) 1

3. In a different game, the probability of correctly guessing which of the 5 boxes. contains a tennis ball is 1/5. About how many winners would be expected if 60 contestants play a game?
a) 5
b) 12
c) 15
d) 30​

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.