4. Which of the following inferences about a variable of interest can be drawn from the graph given below? 20 30 40 a. The variable is equally likely to take any value between 20 and 40. b. The variable is more likely to take the value 20 than 40. c. The variable is more likely to take any value outside the range of 20 and 40. d. The variable can only take the value 30