The amount of time to complete a physicał-activity in a PE class is normally distributed with a mean of 38.6seconds and a standard deviation of 6.3 seconds. Round answers to 4 decimal places.a) What is the probability that a randomly chosen student completes the activity in less than 34.9 seconds?b) What is the probability that a randomly chosen student completes the activity in more than 45.8seconds?c) What proportion of students take between 33.7 and 42.2 seconds to complete the activity?seconds.d) 85% of all students finish the activity in less thanSubmit Question

We have given that, X be the random variable from normal distribution with mean = 38.6 and standard…

Answered: The amount of time to complete a…

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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The total annual precipitation for a region is approximately normallydistributed with a mean of 1050 mm and a standard deviation of 400 mm. What isthe probability of an annual precipitation greater than 1050 mm but less than 1300? Answer = 19.5
The annual per capita use of apples (in pounds) in the United States can be approximated by a normal distribution with a mean of 19.2 pounds and a standard deviation of 4 pounds. A) What annual per capita consumption represents the 10th percentile? B) What percentage of people in the United States consume more than 22 pounds of apples annually?
Recently, the bowling scores of a certain bowler were normally distributed with mean 201 and standard deviation 23. a) Find the probability that a score is from 180 to 215. b) Find the probability that a score is from 155 to 170. c) Find the probability that a score is greater than 200. d) The best score is 299. Find the percentile that corresponds to this score, and explain what that number represents. Click the icon to view the standard normal distribution table. ... a) The probability that a score is from 180 to 215 is (Round to four decimal places as needed.) b) The probability that a score is from 155 to 170 is (Round to four decimal places as needed.) c) The probability that a score is greater than 200 is (Round to four decimal places as needed.) than % of all his other scores. d) Theth percentile corresponds to this score, which means that 299 is (Round to five decimal places as needed.)
Hello what about 3b?
the scores on the SAT form a normal distribution, with mean =500 and SD=100. What is the probability of getting a raw score of 41 and 44?
Scores on a standardized exam for 2nd graders are approximately normally distributed with a mean of 72 and a standard deviation of 6. a) b) c)
The amount of time to complete a physical activity in a PE class is normally distributed with a mean of 39.1 seconds and a standard deviation of 5.2 seconds. Round answers to 4 decimal places. a) What is the probability that a randomly chosen student completes the activity in less than 32.7 seconds? b) What is the probability that a randomly chosen student completes the activity in more than 45.4 seconds? c) What proportion of students take between 36.8 and 41.8 seconds to complete the activity? d) 90% of all students finish the activity in less than seconds.
In average, a student reads 29 pages from a textbook each month. Assume astandard deviation is 3 pages. Find the probability of reading(a) between 27 and 31 pages each month(b) more than 30.2 pages per month.
Traveling between University of Santo Tomas and Rizal Park, Manila via shuttle bus takes, on average, 31 minutes with a standard deviation of 5 minutes. In a given time, a bus transported passengers 45 times. What is the probability that the average transport time was less than 30 minutes? Assume the mean time is measured to the nearest minute
The patient recovery time from a particular surgical procedure is normally distributed with a mean of 6.5 days and standard deviation of 1.3 days. Write your answers in percent form. Round your answers to the nearest tenth of a percent. a) What is the probability of spending less than 9 days in recovery? b) What is the probability of spending more than 7 days in recovery? c) What is the probability of spending between 7 days and 9 days in recovery?

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