53- The probability that a patient recovers from a rare blood disease is 0.4. If 15 people areknown to have contracted this disease, what is the meanA. 0.1859B. 6C. 3.6D. 154-The probability that a patient recovers from a rare blood disease is 0.4. If 15 people areknown to have contracted this disease, what is the varianceA. 0.1859B. 6C. 3.6D. 155-During a laboratory experiment, the average number of radioactive particles passing througha counter in 1 millisecond is 4. What is the probability that 6 particles enter the counter in agiven millisecond?A. 0.0487B. 0.1042C. 4D. 2

n = 15, p = 0.4Note: According to bartelbyquestion answer guidelines an expert can solve only one…

Answered: 53- The probability that a patient…

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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d, e
24) The acidity of human blood, measured on a pH scale, is a normal random variable with a mean of 7.4 and standard deviation of 0.12. Find the probability that the acidity of a person's blood has a pH greater than 7.5. A. 0.1587 B. 0.7967 C. 0.8300 D. 0.1700
May I know the answer of Q11 subpart, d and e ?
1. Let X be the distance in kilometers that a tyre travels before being replaced. Historical data suggests that X is normally distributed with mean 60,000 and coefficient of variation 0.25. - What is the probability that a tyre is replaced after traveling more than 72,000 kilometers? The probability is? - Among all the tyres that were replaced in the last 5 years, what proportion of them travelled between 52,500 and 66,000 kilometers? The proportion is ? - A tyre manufacturer plans to offer a warranty to its customers. The warranty promises to refund the customer $100 if the tyre does not last for 45,000 kilometers. What is the expected cost per tyre of this warranty in dollars? The expect cost is ?
6. A tennis player makes a successful first serve 60% of the time. Assume that each serve is independent of the others. If the player serves 8 times, what is the probability that she gets exactly 3 successful first serves? A. 0.0065 B. 0.216 C. 0.124 D. 1.298 7. A researcher reported that the mean weekly television viewing time for children aged 2-11 years is 24.5 hours with a standard deviation of 6.2 hours. Assuming that the weekly television viewing times are unimodal and symmetric (i.e., approximately bell-shaped), 99.7% of all such children are expected to watch between what range of hours of TV per week? Provide a lower and an upper bound. A. 5.9 and 43.1 B. 18.3 and 30.7 C. 12.1 and 36.9 D. 12.1 and 24.5 8. The diameters of pencils produced by a certain machine are normally distributed with a mean of 0.30 inches and a standard deviation of 0.01 inches. What percent of pencils will have a diameter greater than 0.328 inches. A. 0.9974
The cost of 5 gallons of ice cream has a variance of 36 with a mean of 35 dollars during the summer. What is the probability that the sample mean would be less than 33.8 dollars if a sample of 96 5-gallon pails is randomly selected? Round your answer to four decimal places.
Suppose babies born in a large hospital have a mean weight of 3685grams, and a variance of 330,625. If 113 babies are sampled at random from the hospital, what is the probability that the mean weight of the sample babies would be greater than 3631 grams? Round your answer to four decimal places.
If Y is a random variable from an exponential distribution with a mean of 5; what is the probability that Y is more than 7?
Suppose that the random variable X represents the length of a punched part in meters. Let Y be the length of the part in inches. Please report your answer in 2 decimal places. If E(X) = 5.6, what is the mean of Y? 1 m = 39.37 inches
1. The probability that a planted radish seed germinates is 0.80. A gardener plants nine seeds. Let X denote the number of radish seeds that successfully germinate? What is the variance and standard deviation of X? State your answer in 2 decimal place value
Suppose the horses in a large stable have a mean weight of 873lbs, and variance of 17,161. What is the probability that the mean weight of the sample of horses would differ from the population mean by less than 15lbs if 50 horses are sampled at random from the stable? Round your answer to four decimal places.
The cost of 5 gallons of ice cream has a variance of 49 with a mean of 36 dollars during the summer. What is the probability that the sample mean would differ from the true mean by less than 1.5 dollars if a sample of 142 5-gallon pails is randomly selected? Round your answer to four decimal places.

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