Suppose the force acting on a column that helps to support a building is a normally distributed random variable X with mean value 19.0 kips and standard deviation 1.50 kips. Compute the following probabilities by standardizing and then using a standard normalcurve table from the Appendix Tables or SALT. (Round your answers to four decimal places.)(a) P(X ≤ 19)(b) P(X ≤ 20.5)(c) P(X2 11.5)USE SALT(d) P(17 ≤ x ≤ 22)(e) P(|X19| ≤ 2)

Answered: Suppose the force acting on a column…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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part C D
Suppose the force acting on a column that helps to support a building is a normally distributed random variable X with mean value 13.0 kips and standard deviation 1.50 kips. Compute the following probabilities by standardizing and then using a standard normal curve table from the Appendix Tables or SALT. (Round your answers to four decimal places.) In USE SALT (a) P(X s 13) 0.5 (b) P(X s 14.5) 0.8413 (c) P(X 2 5.5) 21.25 (d) P(11 s X s 16) (e) P(JX - 13| s 1)
Only Parts D and E please.
Q1. Students in a primary school are being tested to see how good their fine motor skills are. The teachers need to order some new equipment so they need an idea of the dexterity of the students. Using a standard dexterity test points, which are normally distributed with a population mean of 14 points and standard deviation of 4.6 points. If a randomly selected individual takes the test, what is the probability that the person will make more than 15 points? Q2: According to the American Automobile Association (AAA), the average cost of a gallon of regular unleaded fuel at gas stations in August 2010 was $2.58. Assume that the standard deviation of such costs is $0.15. Suppose that a random sample of n = 100 gas stations is selected from the population and the cost per gallon of regular unleaded fuel is determined for each. What is the approximate probability that the sample has a mean fuel cost that exceeds $2.7 and between $2 and $3? Q3. The lengths of stay (in days) for 100…
Please do the following questions with full handwritten working out. Mean= 0.177911 Variance=0.057632
A person's blood glucose level and diabetes are closely related. Let x be a random variable measured in milligrams of glucose per deciliter (1/10 of a liter) of blood. Suppose that after a 12-hour fast, the random variable x will have a distribution that is approximately normal with mean u = 89 and standard deviation o = 27. Note: After 50 years of age, both the mean and standard deviation tend to increase. For an adult (under 50) after a 12-hour fast, find the following probabilities. (Round your answers to four decimal places.) n USE SALT (a) x is more than 60 (b) x is less than 110 (c) x is between 60 and 110 (d) x is greater than 125 (borderline diabetes starts at 125) Need Help? Watch It Read It
please solve question 11
A random sample of n = 100 observations is selected from a population with u = 31 and o = 21. Approximate the probabilities shown below. a. P(x2 28) c. P(xs 28.2) b. P(22.1sxs26.8) d. P(x2 27.0) Click the icon to view the table of normal curve areas.
The weight of grapefruits produced by an orchard is normally distributed, with a mean weight (μ) of 450g and a standard deviation of 50g. We randomly select a sample of 120 grapefruits from the orchard. Q.3.1.1 Compute the standard error.Q.3.1.2 What is the probability that the average weight of the grapefruits in the sample will lie between 445g and 460g? Interpret your answer.
Answer a and b
How were the answers of 0.0344, 0.4656, 0.1470, and 0.1470 attained?

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