Hello I need help answering this question please as soon as possible!! thank youu! I NEED YOUR HELP!

Question 3: A study of exercise finds the following equations for the probability of heart disease (%) as a function of amount of exercise (hours per week). People under the age of 50: y = 30 - 2x People over the age of 50: y = 54 - 4x All people, regardless of age: y = 25 + 5x Notice that the slope for each of the two groups divided by age has a negative slope, while the slope for all people is positive. This phenomenon is called Simpson's Paradox, and the plot below gives a visual explanation of what is happening: Probability vs Hours exercised Combined 50 Probability 8 20 10 Hours Exercised The cluster of points on the bottom left are the group under 50, and the cluster of points in the top right are the group over 50. (3+3+2+1=9 marks total) A. Based on the image and the rule of thumb from class, predict the value of t for each of the three lines (under 50, over 50, and full population). You obviously won't be able to get exact values; am just looking to see if you get in the right ballpark. B. Using all three models, predict the probability of heart disease for a random person who exercises 5 hours per week. C. If you had to make a prediction for someone whose age was unknown, which of the three predictions from part B would be most appropriate? Explain your choice. D. Simpson's Paradox is caused by an underlying effect that makes our predictions less effective. What is most likely the underlying cause in this situation