**Unit 3, Topic 12, Exercise 12-24****National Anthem Times**Sports betting has become so rampant that bets are even placed on how long the singing of the National Anthem will take at the beginning of a sports contest. Suppose that these times follow a normal distribution with a mean of 92 seconds and a standard deviation of 11 seconds.Round your answers to four decimal places.**a.** Determine the probability that a randomly selected singing of the national anthem would take more than 2 minutes (120 seconds).[Answer box]**b.** Determine the probability that a randomly selected singing of the national anthem would take less than 1 minute (60 seconds).[Answer box]

Let "X" be the time taken to sing the national anthem.

Sports betting has become so rampant that bets are even placed on how long the singing of the National Anthem will take at the beginning of a sports contest. Suppose that these times follow a normal distribution with mean 92 seconds and standard deviation 11 seconds. Round your answers to four decimal places. a. Determine the probability that a randomly selected singing of the national anthem would take more than 2 minutes ( 120 seconds). b. Determine the probability that a randomly selected singing of the national anthem would take less than 1 60 minute ( seconds).

Sports betting has become so rampant that bets are even placed on how long the singing of the National Anthem will take at the beginning of a sports contest. Suppose that these times follow a normal distribution with mean 92 seconds and standard deviation 11 seconds. Round your answers to four decimal places. a. Determine the probability that a randomly selected singing of the national anthem would take more than 2 minutes ( 120 seconds). b. Determine the probability that a randomly selected singing of the national anthem would take less than 1 60 minute ( seconds).

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

The fictional College Aptitude Test (CAT) has scores that are normally distributed with a mean of 1177 and a standard deviation of 187 points. a. What is the probability that a randomly selected student taking the CAT scores above 1060?You may round your answer to four decimals. b. Find P49P49, the 49th percentile for the CAT scores - the score that separates the lower 49% of the test scores from the rest.Round to the nearest whole number. c. If a random sample of 44 students is given the CAT, what is the probability that the sample mean of their test scores is below 1230?Round to four decimal places.
A professor knows that her statistics students' final exam scores have a mean of 79 and a standard deviation of 12.4. In his class, an "A" is any exam score of 90 or higher. This quarter she has 25 students in her class. What is the probability that 7 students or more will score an "A" on the final exam?
The weights of steers in a herd are distributed normally. The variance is 10,000 and the mean steer weight is 1100⁢lbs. Find the probability that the weight of a randomly selected steer is between 919 and 1180⁢lbs. Round your answer to four decimal places.
Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the standard deviation is 5. What is the probability of selecting a person with a score greater than Cody’s?
Answer Part C only.
The NJ Department of Health has reported the average life span of NJ residents is 81 years. If the standard deviation is σ = 4 years, what is the probability of a person living to at least 92 years of age?
Please see pictures for details of question.
K The following data represent the number of drivers involved in a fatal crash in 2016 in various light and weather conditions. Complete parts (a) through (c) below. Click the icon to view the data for fatal crashes in 2016. (a) Among fatal crashes in unknown weather conditions, what is the probability that a randomly selected fatal crash occurs when it is dawn/dusk? The probability that a randomly selected fatal crash in unknown weather conditions occurs when it is dawn/dusk is approximately. (Round to three decimal places as needed.) Data table Weather Daylight Dark, but Lighted 5875 497 51 54 255 Normal Rain Snow/Sleet Other Unknown 14,307 875 219 125 810 (...) Dark 8151 681 156 220 548 Dawn/Dusk Other 1183 87 40 71 65 8 2 9 133 X