The combined SAT scores for the students at a local high school are normally distributed with a mean of 1478 and a stand

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The Combined Sat Scores For The Students At A Local High School Are Normally Distributed With A Mean Of 1478 And A Stand 1 (32.43 KiB) Viewed 22 times

The combined SAT scores for the students at a local high school are normally distributed with a mean of 1478 and a standard deviation of 308. The local college includes a minimum score of 1293 in its admission requirements. What percentage of students from this school earn scores that fail to satisfy the admission requirement? PX < 1293) Enter your answer as a percent accurate to 1 decimal place (do not enter the "%" sign). Answers obtained using exact-scores or z-scores rounded to 3 decimal places are accepted Question Points possible This is attempt of Company XYZ know that replacement times for the portable MP3 players it produces are normally distributed with a mean of 2 8 years and a standard deviation of years Find the probabiley that a randomly selected portable MP3 player will have a replacement time less than 0.6 years? PX 0.6 years) Enter your answer accurate to 4 decimal places. Answers obtained using exact 2-scores or 2-scores rounded to 3 decimal places are accepted of the company wants to provide a warranty so that only 4.2% of the portable MP3 players will be replaced before the warranty expires, what is the time length of the warranty warranty years Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact scores or scores rounded to 3 decimal places are accepted.