n-SearchQhttps://learn.zybooks.com/zybook/MAT-240-J5704-OL-TRAD-UG.23EW5/chapter/4/section/2?content_resource_id=5... Aibrary> MAT 240: Applied Statistics home > 4.2: Normal distribution11BXQINSign outType here to searchZPARTICIPATION 4.2.2: Empirical rule.ACTIVITYIn 2015, the College Board SAT mathematics score of high school seniors, which follow an approximately normal distribution, hada mean of 511 and a standard deviation of 120²1) What percentage of seniors who took the test in 2015 scoredbetween 271 and 751?2) What percentage of seniors who took the test in 2015 scored above631?2O approximately 50%O approximately 68%O approximately 95%O approximately 16%O approximately 68%O approximately 84%3) What percentage of seniors who took the test in 2015 scoredbetween 271 and 511?4) Should a score of 770 be considered unusual?O YesO NoO approximately 68%O approximately 16%O approximately 47.5%W3+A S DEE4X CF4$RF1.F595%VTGF66BYH&7CorrectNApproximately 95% of seniors scored within twostandard deviations of the mean, namely between5112(120) 271 and 511 + 2(120) = 751.12%UF8*88F91MEarnings upcoming(9?EzyBooks catalogF10O<*-)0F11PJE+F12PrtSc[+?

Empirical rule says : 68% data lie within 1 standard deviation 95% data lie within 2 standard…

Answered: In 2015, the College Board SAT…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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John Beale of Stanford, California, recorded the speeds of cars driving past his house, where the speed limit read 20 mph. The mean of 100 representative readings was 23.76 mph, with a standard deviation of 3.53 mph. a) How many standard deviations from the mean would a car going the speed limit be? b) Which would be more unusual, a car traveling 35 mph or one going 8 mph? a) A car traveling at the speed limit is from the mean. (Round to two decimal places as needed.) b) Choose the correct answer below and fill in the answer box(es) to complete your choice. (Round to two decimal places as needed.) OA. B. standard deviations O C. The car traveling 35 mph is more unusual. It is standard deviations from the mean, while the car traveling 8 mph is standard deviations from the mean. The car traveling 8 mph is more unusual. It is standard deviations from the mean, while the car traveling 35 mph is standard deviations from the mean. Both cars are equally unusual. Both cars are standard…

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