1. 40 students are enrolled in ABC 200 course. The probability of passing the course is 0.75. What is the probability that grading records show exactly the first 25 students passing the course followed by the next 15 students failing? (0.7540)(0.25) (0.7525)(0.2515) (0.75)(0.2540) (0.7515)(0.2525)

2. A. The population has a mean of 400 and a standard deviation of 36. We sample 49 people from this population and repeat this process 25 times. B. The population has a mean of 100 and a standard deviation of 36. We sample 25 people from this population and repeat this process 16 times. Which of the two scenarios will have a wider sampling distribution? Same A B

4. Suppose that 0.7 of people in your town wear a mask. Of those who wear a mask 0.05 of them get sick. Of those who do not wear a mask 0.1 of them get sick. In order, what is Prob (Wear a Mask); Prob (Get Sick | Wear Mask); Prob (Get Sick | Not wear Mask) 0.7;0.05;0.1 0.1;0.7;0.05 0.05;0.7;0.1 0.7;0.1;0.05

7. Terrific news! My new drug is increasing kidney functions by 150%. The chances of that occurring due to random chance are less than one in a million! This researcher's results are Double blind Clearly faked because he went to school at Ohio State University and therefore cannot be trusted. Treatment Statistically significant

9.All the possible numbers between 100 and 200. For example: 112.135576767545, 191.1205639928, 150.23948093, etc. This is an example of a Discrete variable. Finite sample space. Marginal distribution. Continuous variable.