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6. SAT scores have a mean of 1218 and a standard deviation of 139 a. Would the score of 1590 be considered as usual or unusual? Explain. (2 pts) b. Find the minimum and maximum usual test scores. (2 pts) 7. Given 0.18 0.52 0.3 a. List ALL the conditions that shown above is a probability distribution. (2 pts) b. Find the expected value (or mean) of the probability distribution. (2 pts) 7. Given the probability distribution below: 0.09 0.16 0.12 0.08 0.15 0.18 0.06 0.16 0 a. Find P(xs2). (2 pts) b. Find P(x <6). (2 pts) c. Find P(x is at least 4). (2 pts) 8. Assuming that your saving account will be triple every 5 years, and you currently have $15,000 of saving. How will will you have, for 12.5 years later? (4 pts)

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Dear student you have posted more than 1 question at a time. According to HOMEWORKLIB POLICY only one solution should be provided at a time. Still I've solved your first two questions. Please repost others thank you.ere we イのve N= 12r and 6 13.9 6 2.6 6 13.9 un usu a min 940

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