3. (8 points) Suppose you get sick this weekend, and you are worried you have COVID. Based on your lifestyle, the overall probability you have COVID is .02 (2% chance). a) You get a rapid test from the pharmacy which is 95% accurate. Your test result is positive. Given this positive test result, what is the probability you have COVID? b) You decide to take a second rapid test that has the same degree of accuracy: 95%. You receive a positive result again. Given this additional positive test, what is the updated probability you have COVID? big bris gale ant abest Home sonon vey no. qu 4. (8 points) Imagine you are entering a contest where you must guess the number of jelly beans in a large jar. You must make a quick guess at how many are inside. Explain a heuristic you might use in this scenario. Provide one reason why this heuristic might lead to an accurate guess AND one reason the heuristic might lead the guess to be inaccurate