Some flowers in a flowers garden were showing signs of disease. A randomisample of 300 flowers of various sizes was examined yielding the followingresults:ТуреDiseasedDiseased freeDoubtfulRead402922White573423Yellow3638| 21If a tree selected at random, find the probability that:a- Selected flower is Red.b- Selected flower is Diseased.C- Selected flower is Red or Diseased free.d- Selected flower is Not Diseased.e- Selected flower is Yellow given that the flower is Diseased free

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Answered: Some flowers in a flowers garden were…

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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A random experiment was run 23 times with groups of 24 mice. Each time the experiment was run, 4 mice were initially infected with a disease; the remaining mice were susceptible to contracting the disease. After one day, they measured the number of number of newly infected mice (not including those originally infected). They found the following frequency table: Newly infected mice Newly infected mice 4 5 6 7 8 9 10 11 Frequency 1 2 2 6 5 4 2 1 Determine the expected probability of transmission for this particular variant of disease. Round your answer to three decimal places.
One hundred adults were randomly sampled and took their BMI and categorize them as Underweight, Normal Weight and Overweight. The data is summarized in the following table. If one of the hundred aults is randomly selected: a) What is the probability that they are 56+ or overweighted? b) What is the probability that they are underweighted or normal weighted? c) Is it correct to say that a randomly selected adult is 1.2 times as likely to be an overweighted as underweighted? Justify your answer.
suppose we select an SRS of 1010 adults. If it is believed that 60% of all adults are very satisfied with their lives, what is the probability that at least 610 adults in our sample are very satisfied with their lives?Let X be the number (out of 1010) of adults who are very satisfied with their lives. What distribution should X have? Why?
A study by a reputable research organization found that when presented with prints from the same individual, a fingerprint expert will correctly identify the match 91% of the time. In contrast, a novice will correctly identify the match 77% of the time. Consider a sample of seven different pairs of fingerprints, where each pair is a match. Complete parts a and b below. a. What is the probability that an expert will correctly identify the match in all seven pairs of fingerprints? The probability is enter your response here. (Round to four decimal places as needed.) b. What is the probability that a novice will correctly identify the match in all seven pairs of fingerprints? The probability is enter your response here. (Round to four decimal places as needed.)
There are declining levels of cooperation among persons contacted in surveys and this brings concerns to pollsters. A pollster contacts 92 people in the 18-21 age bracket and finds that 78 of them respond and 14 refuse to respond. When 276 people in the 22-29 age bracket are contacted, 259 respond and 17 refuse to respond. Assume that 1 of the 368 people is randomly selected. Find the probability of getting someone in the 22-29 age bracket or someone who agreed to respond. Report the answer as a percent rounded to one decimal place accuracy. You need not enter the "%" symbol. prob = Question Help: M Mes
In a study of 349,212 cell phone users, it was found that 26 developed cancer of the brain or nervous system. Assuming that cell phones have no effect, there is a 0.000109 probability of a person developing cancer of the brain or nervous system. We therefore expect about 39 cases of such cancer in a group of 349,212 people. Estimate the probability of 26 or fewer cases of such cancer in a group of 349,212 people. What do these results suggest about media reports that cell phones cause cancer of the brain or nervous system? (a) P(xs 26) = (Round to four decimal places as needed.) (b) What does the result from part (a) suggest about the media reports? O A. The media reports appear to be correct because one would expect that more than 26 cell phone users would develop cancer and the study offers significant evidence to support this. B. The media reports appear to be incorrect because one would expect that more than 39 cell phone users would develop cancer. In fact, the study may offer…
Use the data in the following table, which lists the survey results of 558 university-affiliated individuals and their attitudes regarding working and learning remotely. Assume that individuals are randomly selected from those included in the table. Affiliation Type Preference Undergrad Grad Staff Faculty 106 91 33 145 Remote 86 59 22 16 Hybrid or In Person Answer the following questions. If two of the individuals are randomly selected without replacement, what is the probability of both selected individuals having a preference for Remote working and learning? 0.672 (Round to three decimal places as needed.) If one of the individuals is randomly selected, what is the probability of selecting an individual that is Faculty and has a preference for Remote working and learning? 0.260 (Round to three decimal places as needed.) If one of the individuals is randomly selected, what is the probability of selecting an individual that is Staff or has a preference for Remote working and learning?…
In a study of 235,722 cell phone users, it was found that 109 developed cancer of the brain or nervous system. Assuming that cell phones have no effect, there is a 0.000477 probability of a person developing cancer of the brain or nervous system. We therefore expect about 113 cases of such cancer in a group of 235,722 people. Estimate the probability of 109 or fewer cases of such cancer in a group of 235,722 people. What do these results suggest about media reports that cell phones cause cancer of the brain or nervous system? (a) P(x ≤ 109) = (Round to four decimal places as needed.)
In a study of 213,270 cell phone users, it was found that 77 developed cancer of the brain or nervous system. Assuming that cell phones have no effect, there is a 0.000397 probability of a person developing cancer of the brain or nervous system. We therefore expect about 85 cases of such cancer in a group of 213,270 people. Estimate the probability of 77 or fewer cases of such cancer in a group of 213,270 people. What do these results suggest about media reports that cell phones cause cancer of the brain or nervous system? (a) P(x ≤ 77) = (Round to four decimal places as needed.)

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