than one leadership position. How many outcomes are possible for the 3 -getter will become treasurer. No person can hold leadership positions? (4) What does a 95% and 99% level of statistical significance mean? Explain in terms of Standard Deviation or Variance. (5)Suppose you want to pick 7 people out of 20 people to take part in a psychology experiment. How many ways can this be done? (6)Suppose you are a doctor seeing a patient with a potential tumor (cancer). The patient's test results come back negative. Based on the data below, what is the probability that the patient has cancer? Tumor is Malignant Tumor is Benign Positive Test Result TОTAL 85 1485 1570 (True Positives) (False Positives) Negative Test Result 15 8415 8430 (False Negatives) (True Negatives) TOTAL 100 9900 10,000 (7)From a bag that contains 12 white balls, 18 red balls, and 10 green balls, one ball is drawn at random. 13 MacBook Air F8 F6 80 F3

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