A box contains 8 non-defective (N) items and4 defective (D) items. Three items are drawnwithout replacement.Find the probability that exactly onedefective item is obtained. 0.509 [Theanswer should be a number rounded to fivedecimal places, don't use symbols such as %]One possible correct answer is:0.50909090909091

Given that Number of non-defective = 8 Number of defective = 4 Total items = 8 + 4 = 12 Sample size…

Answered: Find the probability that exactly one…

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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Hospitals typically require backup generators to provide electricity in the event of a power outage. Assume that emergency backup generators fail 33% of the times when they are needed. A hospital has two backup generators so that power is available if one of the fails during a power outage. Complete parts (a) and (b) below. a. Find the probability that both generators fail during a power outage. 0.1089 (Round to four decimal places as needed.) b. Find the probability of having a working generator in the event of a power outage. Is that probability high enough for the hospital Assume the hospital needs both generators to fail less than 1% of the time when needed. 0.8911 (Round to four decimal places as needed.) Is that probability high enough for the hospital? Select the correct answer below and, if necessary, fill in the answer box to complet your choice. O A. No, because both generators fail about % of the time they are needed. Given the importance of the hospital's needa th…
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ces S Tools > A student takes a true-false test consisting of 6 questions. Assume that the student guesses at each question and find the probability that a. the student gets at least one question correct. b. the student gets a 50% or better on the exam. a. The probability that the student gets at least one question correct is 0.984375. (Round to six decimal places as needed.) b. The probability that the student gets a 50% or better on the exam is (Round to four decimal places as needed.) Clear all Check answer Get more help. View an example Help me solve this MacBook Air DIL
solve 6.86
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Find the probability that a randomly selected point within the square falls in the red-shaded area. First, find the area of the red-shaded region. 4 4 5 5 Ashaded = [?]
A and B part
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Find the probability that exactly one defective item is obtained. 0.509