ECG records how electric signals are transmitted throughout the heart and cons- ists ofwaves called P, Q, R, S, T and U. Let's assume that the interval between Q and T waves in agrown man, so called QT-interval, is normally distributed with the mean 400 ms andstandard deviation 20 ms.If a grown man is picked random and his QT interval measured, what is the probability ofthe interval being longer than 420 ms? b) 5% If a grown man is picked at random and his QTinterval measured, what is the probability of the interval being between 400 and 420 ms? c)5% How long needs a QT interval to be, at mininum, in order to be among the 20 % longestQT intervals in a grown man?Allf a grown man is picked at random and his QT interval measured, what is the probabilityof the interval being longer than 420 msb) If a grown man is picked at random and his QT interval measured, what is the probabilityof the interval being between 400 than 420 msC.) how long needs a QT interval to be, at minumum in order to be among the 20% longestQT intervals in a grown man?

Given X~ N(400, 20^2) We want to find (1) P(X>420)= ? (2) P(400<X<420)= ? (3) P(X<a)=…

A)lf a grown man is picked at random and his QT interval measured, what is the probability of the interval being longer than 420 ms b) If a grown man is picked at random and his QT interval measured, what is the probability of the interval being between 400 than 420 ms C.) how long needs a QT interval to be, at minumum in order to be among the 20% longest QT intervals in a grown man?

A)lf a grown man is picked at random and his QT interval measured, what is the probability of the interval being longer than 420 ms b) If a grown man is picked at random and his QT interval measured, what is the probability of the interval being between 400 than 420 ms C.) how long needs a QT interval to be, at minumum in order to be among the 20% longest QT intervals in a grown man?

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

36) The time X needed to complete a final examination in a particular College Course is normally distributed with a mean of 60 minutes and standard deviatation of 10 minutes. The Probability of completing The exam in less than 70 minutes. is A) 0.9655. B)0, 1387 C) 0.8413 D) 0.0345
As a result of a durability test applied to tires produced in a factory producing automobile tires arithmetic mean of the durations of the tires to withstand the test 242 s. and its standard deviation is 36 s. Normal with It is known to have distribution. Random tires produced and tested in this factory the duration of a selected tire to withstand the test, a) 256 to 308 s. What are the chances of it happening? b) Since it is known that a total of 150 tires are tested, this test is 300 s. Tire that lasts more than What is the number.?
The time (in minutes) between arrivals of customers to a post office is to be modelled by the Exponential distribution with mean 0.62. Part a) What is the probability that the time between consecutive customers is less than 15 seconds? Part b) Find the probability that the time between consecutive customers is between ten and fifteen seconds. Part c) Given that the time between consecutive customers arriving is greater than ten seconds, what is the chance that it is greater than fifteen seconds?
The mean number of errors due to a particular bug occurring in a minute is 0.0001a) What is the probability that no error will occur in 20 minutes?b) How long would the program need to run to ensure that there will be a 99.95% chance that an error wills showup to highlight this bug?
The time (in minutes) between arrivals of customers to a post office is to be modelled by the Exponential distribution with mean 0.6. Part a) What is the probability that the time between consecutive customers is less than 15 seconds? Part b) Find the probability that the time between consecutive customers is between ten and fifteen seconds. Part c) Given that the time between consecutive customers arriving is greater than ten seconds, what is the chance that it is greater than fifteen seconds?
The time (in minutes) between arrivals of customers to a post office is to be modelled by the Exponential distribution with mean 0.75. Part a) What is the probability that the time between consecutive customers is less than 15 seconds? Part b) Find the probability that the time between consecutive customers is between ten and fifteen seconds. Part c) Given that the time between consecutive customers arriving is greater than ten seconds, what is the chance that it is greater than fifteen seconds?
lengths of human pregnancies are normally distributed with μ = 268 days and σ = 15 days. I. the probability that a human pregnancy lasts between 240 and 289 days? II. determine the length of the pregnancy such that 85% of the population is smaller that is, what is the 85th percentile for length of pregnancies in humans using the population above. III) what percentage of preganancies end at 37 weeks or prior
The time to failure (in hours) of fans in a personal computer can be modeled by an exponential distribution with 2-0.0004. Assuming we have a large number of computers. a) What is the expected life of a fan (in hours)? b) What is the mean time until the tenth fan failure? c) What is the expected number of fans failing in the next 5000 day.
The time between arrivals of customers at the drive-up window of a bank follows an exponential distribution with a mean of 20 minutes. a)What is the probability that the arrival time between customers will be 13 minutes or less? b)What is the probability that the arrival time between customers will be between 13 and 27 minutes?
The time (in minutes) between arrivals of customers to a post office is to be modelled by the Exponential distribution with mean 0.47. Part a) What is the probability that the time between consecutive customers is less than 15 seconds? Part b) Find the probability that the time between consecutive customers is between ten and fifteen seconds. Part c) Given that the time between consecutive customers arriving is greater than ten seconds, what is the chance that it is greater than fifteen seconds?
a) What is the probability that a randomly selected adult in the U.S. has at least one grandparent who was born outside of the U.S.? b) find the expected number of grandparents who were born outside of the U.S. that a randomly selected adult in this country has. (Find the mean of X) c) find the standard deviation of X. Round to 4 decimal places.
Data collected at Tornonto Pearson International Airport suggests that an exponential distribution with mean value 2.74 hours is a good model for rainfall duration. Round all answers to 4 decimal places. a) What is the probability that the duration of a particular rainfall event at this location is at least 3 hours? at most 6 hours? between 3 and 6 hours? b) What is the probability that rainfall duration exceeds the mean value by more than 1 standard deviation(s)? What is the probability that it is less than the mean value by more than 1 standard deviation?