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Your answer: 1 (1)_1(2)_2 (1) ___2 (2) ____3 1. Suppose SAT scores (X) are normally distributed with mean = 1000 and sta
Posted: Sun Sep 05, 2021 5:01 pm
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- Your Answer 1 1 1 2 2 1 2 2 3 1 Suppose Sat Scores X Are Normally Distributed With Mean 1000 And Sta 1 (31.37 KiB) Viewed 119 times
Your answer: 1 (1)_1(2)_2 (1) ___2 (2) ____3 1. Suppose SAT scores (X) are normally distributed with mean = 1000 and standard devia- tion o = 200. (1) What proportion of students score between 900 and 1120 on the SAT? (A) 0.7257 (B) 0.3085 (C) 0.2086 (D) 0.4172 (2) 10% of students score higher than what SAT score? (A) 1056 (B) 1256 (C) 1456 (D) 1656 2. Consider the following proposed density function, (1) What must be the value of the point on the vertical axis labeled e for the curve to be a proper density function? (A) 1/4 (B) 1/2 (C) 3/4 (D) 1 (2) Calculate P(0