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0/100 Submissions Used MY NOTES ASK YOUR TEACHER In introductory statistics courses at Large State University, the times it takes students to complete their final exams are normally distributed with a mean of u = 96 minutes and a standard deviation of a = 12 minutes. Use the figure below to answer the following questions. Area Under a Normal Curve DETAILS 0.15% 2.35% 13.5% μ-30 H-20 μ-σ Need Help? 34% H 68% 95% -99.7% Read It 34% p+o 2.35% 0.15% + μ+20 H+30 (a) Estimate the probability that a randomly selected student will complete their final exam in less than 84 minutes. 13.5% (b) The final exam is scheduled to allow 2 hours. Estimate the probability that a randomly selected student will need more than 2 hours to complete their exam. (c) In a section with 200 students, how many students do you expect will need more than 2 hours to complete their exams? students

0/100 Submissions Used MY NOTES ASK YOUR TEACHER In introductory statistics courses at Large State University, the times it takes students to complete their final exams are normally distributed with a mean of u = 96 minutes and a standard deviation of a = 12 minutes. Use the figure below to answer the following questions. Area Under a Normal Curve DETAILS 0.15% 2.35% 13.5% μ-30 H-20 μ-σ Need Help? 34% H 68% 95% -99.7% Read It 34% p+o 2.35% 0.15% + μ+20 H+30 (a) Estimate the probability that a randomly selected student will complete their final exam in less than 84 minutes. 13.5% (b) The final exam is scheduled to allow 2 hours. Estimate the probability that a randomly selected student will need more than 2 hours to complete their exam. (c) In a section with 200 students, how many students do you expect will need more than 2 hours to complete their exams? students

MATLAB: An Introduction with Applications
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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7. DETAILS 0.15% 2.35% 0/100 Submissions Used In introductory statistics courses at Large State University, the times it takes students to complete their final exams are normally distributed with a mean of μ =96 minutes and a standard deviation of a = 12 minutes. Use the figure below to answer the following questions. Area Under a Normal Curve Need Help? 13.5% μ-30 H-20 H-0 34% Read It μ 68% 95% -99.7% 34% 13.5 % 2.35% 0.15% + μ+20 H+30 H+0 (a) Estimate the probability that a randomly selected student will complete their final exam in less than 84 minutes. (b) The final exam is scheduled to allow 2 hours. Estimate the probability that a randomly selected student will need more than 2 hours to complete their exam. (c) In a section with 200 students, how many students do you expect will need more than 2 hours to complete their exams? students MY NOTES ASK YOUR TEACHER
Transcribed Image Text:7. DETAILS 0.15% 2.35% 0/100 Submissions Used In introductory statistics courses at Large State University, the times it takes students to complete their final exams are normally distributed with a mean of μ =96 minutes and a standard deviation of a = 12 minutes. Use the figure below to answer the following questions. Area Under a Normal Curve Need Help? 13.5% μ-30 H-20 H-0 34% Read It μ 68% 95% -99.7% 34% 13.5 % 2.35% 0.15% + μ+20 H+30 H+0 (a) Estimate the probability that a randomly selected student will complete their final exam in less than 84 minutes. (b) The final exam is scheduled to allow 2 hours. Estimate the probability that a randomly selected student will need more than 2 hours to complete their exam. (c) In a section with 200 students, how many students do you expect will need more than 2 hours to complete their exams? students MY NOTES ASK YOUR TEACHER
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