BIT 2405 Test 1 questions with complete solution answers 2024/2025

BIT 2405 Test 1Suppose a basketball player has made 207 out of 345 free throws. If the player makes the next 3 free throws, I will pay you $28. Otherwise you pay me $9. Find the expected value of the proposition. (If your expected value is that I pay you, your answer is positive. If your expected value is that you pay me, then your answer is negative.) - correct answer −1.01 A company has given you the task to research the salary of first year teachers at the local elementary school. Would you be more interested in looking at the mean, median, or mode? - correct answer Mean A sample of 25 observations has a standard deviation of 4. The sum of the squared deviations from the sample is: - correct answer 384 FACTORIES R US The number of sick days for 195 workers taken each month at Factories R Us is summarized below. Number of Sick Days Frequency 0 — 5 89