STAT 100 Study Guide - Midterm Guide: Rare Disease, Vending Machine, Lyme Disease
Document Summary
Out of class activity (6 parts: the probability a randomly selected driver will be wearing a seatbelt is 0. 75, whereas the probability that he or she will not be wearing one is 0. 35. The probability of both event a and event b happening is 0. 3. Part 2: calculating probabilities: suppose the probability of contracting lyme disease is 1/100 for each tick bite. Part 3: how to calculate the probability of disease given that the test is positive. Sensitivity: probability of a positive test among patients with disease. Specificity: probability of a negative test among patients without disease. The table below gives the counts of people with and without a certain rare disease, and the number of negative and positive tests. Suppose this sample is representative of the population. What is the probability of actually having the disease? (hint: you already know you tested positive: suppose you tested negative.
