QUESTION 13 In a statistics class, there are 45 students where 1/3 of them are girls. In how many ways can a five-student committee be formed with exactly one boy? O 411075 O 40950 O 315900 O 82620
Q: The table shows the results of a survey that asked 800 adults whether they use social media…
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A: From the table we get: n(female)=34 n(B)=15 n(female and B)=11 So, n(female or B)=n(female)+n(B) -…
Q: QUESTION 4 A box of Wheaties has one of four U.S. Olympian trading cards stuffed inside at random.…
A: Here the given information is A box of Wheaties has one of four U.S. Olympian trading cards stuffed…
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A: We have to find corrcet answer..
Q: Question 24
A: Given data Number of question (n) = 10 Probability of getting the right answer (p) = 1/5 = 0.2 a)…
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Q: Questions 1-3. Professor Ivy takes a poll of the nursing students and the engineering students and…
A: We first complete the table: Yes No Total Nursing 304 121 425 Engineering 85 15 100 Total…
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A: In the given scenario, a contingency table was given that contains the categories of job experience…
Q: 13. Fill in the blanks. bias occurs when responders purposefully give inaccurate answers.
A: Response bias occurs when responders purposefully give inaccurate answers.
Q: 1) Round all your answers to 3 digits after the decimal point. School days: The following table…
A: (a) x f P(x) = frequency/Total frequency=f/29506 1 3774 0.128 2 3684 0.125 3 3667 0.124 4…
Q: Given two fair number cubes, what is the probability of rolling doubles four times in a row? A…
A: The odds of rolling doubles is 1/6.
Q: Question #1 The accompanying table lists the numbers of words spoken in a day by each member of 56…
A: Given: Male Female 28916 19097 17080 23982 5369 5101 28363 17816 25958 10524 8297…
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A: In the experiment done on the fish population of the lake on Monday 20 fishes are caught and tagged…
Q: Listed below are the numbers of words spoken in a day by each member of eight different randomly…
A: The data shows the numbers of words spoken in a day by each member of eight different randomly…
Q: Question 3 According to data from the American Medical Association, 9% of the population is…
A: P(left anded) = 0.09sample size (n) = 4x = no. of people left handedP(x=X) = nCx(0.09)x(0.91)4-x…
Q: QUESTION 2 A production facility employs 18 workers on shift A, 15 workers on the shift B, and 12…
A: Given that Total number of workers =45. The number of randomly selected workers =8 4 from group A ,…
Q: A test was given to a group of students. The grades and gender are summarized belo Total Male 8. 14…
A: From the table we get: n(male)=31 n(B and male)=9
Q: If a coin is flipped 5 times and heads comes up 2 times, what is the relative frequency of heads…
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Q: Question 5 only
A: Given that Observation: XX X^2X2 1 36 1296 2 42 1764 3 18 324 4 32 1024 5 22 484 6…
Q: A production facility employs 18 workers on shift A, 15 workers on the shift B, and 12 workers on…
A: Given that, The number of wroker in shift A is 18 The number of wroker in shift B is 15 The number…
Q: Giving a test to a group of students, the grades and gender are summarized below A В C Total Male 20…
A: From the contingency table we can see that there are total 78 students who took the test. So, number…
Q: How many different ways are there to select a group of 3 out of 9 people for a survey?
A: From the provided information, Total people = 9 A group of 3 people is selected.
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A: 3) Answer:- Given statement is, The sample is chosen by using the random number generator on your…
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A: We know, Value of chi square = summation of (O-E) ^2 /E Degree of freedom = no. Of groups - 1
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Q: or the following question, type the solutions to each part of the question in the space provided at…
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A: Given that Sample size n = 287 Number of students who are frequent binge drinking, X = 252
Q: Question 13 How many 10 letter arrangements of 10 letters in the word statistics are possible?
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Q: Question 10 The following contingency table summarizes the classification of students by weight and…
A: Comment: As per the our company guidelines we are supposed to answer only three subparts. Kindly…
Q: Giving a test to a group of students, the grades and gender are summarized below A C Total Male 17…
A:
Q: What is the probability of rolling a sum of five when two fair number cubes are rolled? A P(sum of…
A: Solution-: We want to find the probability of rolling a sum of five when two fair number of cubes…
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Q: QUESTION 21 A horse race with 8 equally skilled participants will result in prizes for the three…
A: According to the given question, a horse race has 8 equally skilled participants. We have to find…
Q: QUESTION 16 In a statistics class, there are 45 students where 1/3 of them are girls. In how many…
A:
Q: Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 7…
A: The data regarding grades and gender of students are given.
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Q: Question 45
A: Here, P(A) is 0.63, P(B) is 0.48. P(A∩B)=0.37. The value of P(A∪B) is calculated as follows:
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- Section 9.3 Question #9 The accompanying table lists the numbers of words spoken in a day by each member of 56 different randomly selected couples. Complete parts (a) and (b) below. View the data on words spoken in a day by the couples. Words spoken in a day Male Female 25,697 21,057 15,805 25,188 6,754 6,720 29,295 19,478 24,493 10,387 7,690 17,490 22,966 10,592 16,234 20,441 25,234 15,266 21,404 18,779 10,569 16,002 11,003 13,263 14,379 15,743 22,470 22,604 20,639 4,463 331 17,409 21,684 22,882 8,949 18,644 20,869 15,700 15,430 13,346 15,092 29,768 20,863 8,058 7,547 18,749 5,206 6,165 27,657 12,683 8,948 19,135 11,555 14,109 12,097 20,970 14,231 19,520 20,093 11,976…Question 11 Public Libraries and GenderA survey1 asked a random sample of n=2752 US adults whether they had visited a public library in the last 12 months. The results for males and females are shown in the table below. Yes No Total Females 726 697 1423 Males 505 824 1329 Total 1231 1521 2752Table 1: Have you visited a public library in the last year? 1Rainie, L., “Libraries and Learning,” www.pewinternet.org/2016/04/07/libraries-and-learning/, Pew Research Center, April 7, 2016. (a) Find p^f and p^m, the sample proportions who have visited a public library in the last 12 months, for females and males respectively. What is the difference in sample proportions p^f-p^m?Round your answers to three decimal places.p^f= p^m= p^f-p^m= (b) Find a 95% confidence interval for the difference in population proportions pf-pm.Round your answers to two decimal places.The 95% confidence interval is…QUESTION 5 One study of grand juries in Alameda County, California, compared the demographic characteristics of jurors with the general population, to see if the jury panels were representative.8 The results for age are shown below. The investigators wanted to know whether these 66 jurors were selected at random from the population of Alameda County. (Only persons 21 and over are considered; the county age distribution is known from Public Health Department data.) Fill out the last column below. All of your answers hould be accurate to the tenth digit, for example 4.8. County-wide number percentage jurors fехpected of number Age of jurors 21 to 40 42 41 to 50 23 LO
- Question 2 options: Statistical data for a particular city in Canada in 2013 shows that the number of residents between the ages of 20 and 34 was 149 745. In this age group, 113 900 people had a high-school diploma. To the nearest hundredth, the probability that a person selected at random from this age group had a high-school diploma isO Question 12 <. A CBS News poll involved a nationwide random sample of 651 adults, asked those adults about their party affiliation (Democrat, Republican or none) and their opinion of how the US economy was changing ("getting better," "getting worse" or "about the same"). The results are shown in the table below. %3D better same worse Republican 38 104 44 Democrat 12 87 137 none 21 90 118 If we randomly select one of the adults who participated in this study, compute: (round to four decimal places) a. P(Republican) = b. P(better) = %3D c. P(better | Republican) = С. %3D d. P(Republican | better) = %3D e. P(Republican and better) Submit QuestionQuestion 6 W A random sample of 300 United States cell phone users were asked their age and the question "Do you regularly use your cell phone to text while eating dinner?" The number responding yes was tabulated separately for young adults (aged 18-29), older adults (aged 30-64), and elderly adults (aged 65 or older). The results are summarized in the following table. Uses Cell Phone to Text while Eating Dinner Yes No Total Young adults 127 130 Age Group Older adults 113 29 142 Elderly adults 15 13 28 Total 255 45 300 Which of the following would be the appropriate hypotheses to investigate whether the survey provides convincing statistical evidence that there is an association between a person's age-group and regular use of a cell phone to text while eating dinner? Ho : Among adults in the United States population, there is no difference between age-groups in the proportion of individuals who use their cell phone to text while eating dinner. A H, : Among adults in the United States…
- QUESTION 1 The number of car accidents in small city caused by reckless drivers has heighted concern over the road safety. The traffic authorities of the city recorded a daily average of two such accidents. The probability that a) There are less than 3 accidents in a single day b) There are at least 5 accidents in three daysQuestion 1,2,3,4Question 23 One card is randomly selected from a standard deck of 52 cards. What is the probability of randomly selecting a(n) Queen or 10? Enter your answer as a reduced fraction.
- Question 23 Read and solve the problem; choose the best answer from the choices provided. At a college there are 120 freshmen, 90 sophomores, 110 juniors, and 80 seniors. A school administrator selects a simple random sample of 12 of the freshmen, a simple random sample of 9 of the sophomores, a simple random sample of 11 of the juniors, and a simple random sample of 8 of the seniors. She then interviews all the students selected. Your answer: O Systematic random sampling o Convenience sampling Stratified sampling Cluster samplingQuestion 2(b) b) Employers want to know which days of the week employees tend to take as a casual day in a five-day workweek. The majority of employers would like to believe that the employees would equally choose either of the days during the week. A random sample of 80 managers was asked on which day of the week, their employees were like to take. The data are given below. Day of the Week taken for Casual Day Tuesday Wednesday Thursday Monday Friday Number of employees who take day off 15 12 20 19 For the population of employees, do the days for the highest frequency occur with equal frequencies (i.e. distributed uniformly) during a five-day workweek? Test at a 10% level of significance.Questions 1-3. Professor Ivy takes a poll of the nursing students and the culinary students and asks them if they think they should have to take a math class for their degree. Here are her results: Yes No Total Nursing 132 378 Culinary 44 56 Total Fill in the total cells in the table above. If Professor Ivy picks a random student from the poll to call back who voted no, what is the probability they are a culinary student? % (enter answer as a percent rounded to the nearest tenth as needed) Professor Ivy picks a student at random from the poll to call back, what is the probability that the student wilIl be a culinary student or that they voted no? % (enter answer as a percent rounded to the nearest tenth as needed)
