Please explain step by step thanks. **Question 15: Probability Analysis****Concept:** This question addresses the calculation of probability in the context of structural engineering, specifically relating to the stiffness of a channel section.**Problem Statement:** What is the approximate probability that stiffness would be less than 2350 for any given channel section?**Choices:** - (A) 0.08 - (B) 0.16 - (C) 0.23 - (D) 0.36 **Objective:** To determine the correct probability from the given options, it is essential to understand the distribution of stiffness values in channel sections, typically represented by statistical data or historical measurements. **Analysis of Stiffness in Aluminum-Alloy Channels**In a recent study, samples of aluminum-alloy channels underwent testing to assess their stiffness. The results of these tests are presented in the following frequency distribution table. It is important to note that the distribution is assumed to be normal, which is a common assumption in statistical analysis for predicting expected outcomes.| Stiffness | Frequency ||-----------|-----------|| 2480 | 23 || 2440 | 35 || 2400 | 40 || 2360 | 33 || 2320 | 21 |**Description of the Data:**- **Stiffness Levels:** These represent the stiffness measurements of the aluminum-alloy channels, recorded in units consistent with the study's protocol.- **Frequency:** This column indicates the number of samples that recorded each particular level of stiffness.The table captures the variability in the stiffness measurements across different samples. The most frequently observed stiffness level is 2400, with a frequency of 40, suggesting it is the most common measurement among the samples. The data distribution is typical of a normal distribution, often illustrated as a bell curve when graphed. Understanding this distribution is essential for evaluating the performance and quality of the materials tested.

Given that, the samples of aluminum alloy channels were tested for stiffness.

Answered: 15. What is the approximate probability…

15. What is the approximate probability that stiffness would be less than 2350 for any given channel section? (A) 0.08 (B) 0.16 (C) 0.23 (D) 0.36

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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