A researcher randomly selected 158 personal vehicles and noted the type of vehicle and its color table displays the data Vehicle Color Red Blue/Green Black/Gray Total Sedan 31 22 67 SUV 9 19 Vehicle Type Convertible 20 6 29 Total 43 56 59 Suppose a vehicle is randomly selected. Let event C = convertible and R = red. What is the value of P(R/C)? 29/158
43/158
20/43
20/29

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Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

How many triangles can be drawn with side lengths 4 centimeters, 4.5 centimeters, and 9 centimeters? explain

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10