c. Determine the modal waiting time.Answer in exact fraction, or rounded to at least 4 decimal places. The following table shows the waiting times of 135 aircrafts and their frequencies at a certain airport. Aircraft waiting time (in minutes), for adeparting aircraft is defined to be the difference between scheduled departure time and actual departure time.Waiting Time (Minutes)0- 2020 - 4040 - 6060 - 8080 - 100100 - 120Number of Aircrafts257213?8.

Answered: Image /qna-images/answer/ba98afe0-7f59-448c-90c0-4ca2bed12a6f.jpg

Answered: The following table shows the waiting…

College Algebra

1st Edition

ISBN:9781938168383

Author:Jay Abramson

Publisher:Jay Abramson

Chapter9: Sequences, Probability And Counting Theory

Section9.5: Counting Principles

Problem 36SE: The number of 5-element subsets from a set containing n elements is equal to the number of 6-element...

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The number of 5-element subsets from a set containing n elements is equal to the number of 6-element subsets from the same set. What is the value of n? (Hint: the order in which the elements for the subsets are chosen is not important.)
According to U.S. government statistics, mononucleosis (mono) is four times more common among college students than the rest of the population. Blood tests for the disease are not 100% accurate. Assume that the following table of data was obtained regarding students who came to a certain school's health center complaining of tiredness, a sore throat, and slight fever. Has Mono Doesn't Have Mono Totals Positive Blood Test 19 44 63 Negative Blood Test 46 29 75 Totals 65 73 138 If a student is selected from this group, find the probability that the test is positive, given that the student has mono.
The table below categorizes 10,614,000 office visits to cardiovascular disease specialists in the United States by the duration of each visit. A duration of 0 minutes implies that the patient did not have face-to-face contact with the specialist. Duration (minutes) Number of visits (thousands) 0 390 1-5 227 6-10 1023 11-15 3390 16-30 4431 31-60 968 61+ 185 Total 10,614 The statement is made that office visits to cardiovascular disease specialists are most often between 16 and 30 minutes. Do you agree with this statement? Why or why not?
Calculate the point prevalence for Alzheimer’s disease among individuals 65 years of age or older in a county that has 200,000 individuals who are 65 years of age or older, if 22,223 individuals who are 65 years of age or older have the disease. 0.0111 0.1111 0.8889 0.9889
Assume that in your linguistics class you have earned the test scores 90, 71, 57, and 68; and only one test remains. If you need a mean score of 70 to earn a C, then what minimum score must you obtain on the last test?
Let's assume that there are 500 people in a population. The researcher has access to all 500 participants, and sends a questionnaire that is accessed by a hyperlink. Of the 500 possible subjects, 485 complete it. Does this mean that the results generated from this study will be highly-accurate? What might cause the study to be unreliable?
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A study was conducted to examine the difference in mean cholesterol levels in the blood of men and women and cholesterol levels were measured in 10 women and 10 men. The results were entered into R and the R code and output can be seen below. > tapply(chol$mael,chol$sex,mean) men women219.2115 195.1774 > tapply(chol$mael,chol$sex,var) Men women 90.69332 82.62161 Let's call group of men group 1 and group of women group 2. Which of the following is correct based on the information provided? μ1 = 219.2115 σ1 = 90.69332 s1 = 9.523304 None of the above is true I do not know.
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How is this set up
A sample of four 35-year-old males is asked about the average number of hours per week that he exercises, and is also given a blood cholesterol test. The data is recorded in the order pairs given below, in the form (Hours Exercising, Cholesterol Level): (2.4,217),(3.4,203),(4.3,197),(6.4,195)(2.4,217),(3.4,203),(4.3,197),(6.4,195) Suppose that you know that the correlation coefficient ?=−0.854864204603392r=−0.854864204603392. Find the coefficient of determination for this sample. r-squared =

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