1.) Election. In an election for student council president at Russell Sage College, 80 studentpolled and asked for whom they planned to vote. The table shows the results of the poll.VotesCandidateAllison22EmilyKimberlyJohanna182014Other6.If one student is selected at random, determine the empirical probability that the person plannedto vote fora.) Allisonb.) Emilyc.) Kimberlyd.) Johannae.) Someone other than the hour people listed above

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Answered: 1.) Election. In an election for…

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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2. The table shows the political affiliations and types ofjobs for workers in a particular state. Suppose a worker is selected at random within the state and the worker's political affiliation and type of job are noted. Political Affiliation Democrat Republican Independent White collar 8% 14% 18% Type of job Blue Collar 20% 11% 29% Find the probability that the worker is a white-collar worker affiliated with the Democratic Party
6. Purchased gum Kept the money 13 Students give 4 quarters Students given a $bill 29 11 38 a. Find the probability of randomly selecting a student who spent the money, given that the student was given four quarters. b. Find the probability of randomly selecting a student who spent the money, given that the student was given a $1. c. Find the probability of randomly selecting a student who kept the money, given that the student was given a $1.
Does the location of your seat in a classroom play a role in attendance or grade? 1600 students in a physics course were randomly assigned to one of four groups. The 400 students in group 1 sat 0 to 4 meters from the front of the class, the 400 students in group 2 sat 4 to 6.5 meters from the front, the 400 students in group 3 sat 6.5 to 9 meters from the front, and the 400 students in group 4 sat 9 to 12 meters from the front. Complete parts (a) through (c). Click the icon to view the chi-square table of critical values. (a) For the first half of the semester, the attendance for the whole class averaged 83%. So, if there is no effect due to seat location, we would expect 83% of students in each group to attend. The data show the attendance history for each group. How many students in each group attended, on average? Is there a significant difference among the groups in attendance patterns? 3 4 Group Attendance 1 0.84 0.84 0.84 0.80 The number of students who attended in the first…
The set S = {a, b, c, d} is the sample space for an experiment. Find the probability that outcome c occurs if it is known that outcome d is twice as likely to occur as outcome c, outcomecis twice as likely to occur as outcome b and outcome b is twice as likely to occur as outcome a. O A. O B. OD. O E. Cannot be determined.
As part of a statistics project, a teacher brings a bag of marbles containing 700 white marbles and 300 red marbles. She asks her students to determine how many red marbles are in the bag without counting them.A student randomly draws 100 marbles from the bag. Of the 100 marbles, 33 are red.The target population consists of The 100 marbles drawn by the student The 1000 marbles in the bag None of the above The 33 red marbles drawn by the student The 300 red marbles in the bag The sample consists of The 1000 marbles in the bag The 100 marbles drawn by the student The 33 red marbles drawn by the student None of the above The 300 red marbles in the bag Based on the sample, the student would estimate that ------ marbles in the bag were red.
A sports franchise knows that 81% of their season ticket holders attend every home game. The collect a random sample of size 250 from among last year's season ticket holders. How likely are they to find that 200 or fewer attended every home game? a. .657 b. .800 c. .343 d. .500
Homecoming. A college Statistics class conducted a survey concerning community attitudes about the col-lege’s large homecoming celebration. That survey drew its sample in the following manner: Telephone numberswere generated at random by selecting one of the localtelephone exchanges (first three digits) at random andthen generating a random four-digit number to followthe exchange. If a person answered the phone and thecall was to a residence, then that person was taken to bethe subject for interview. (Undergraduate students andthose under voting age were excluded, as was anyonewho could not speak English.) Calls were placed until asample of 200 eligible respondents had been reached.a) Did every telephone number that could occur in thatcommunity have an equal chance of being generated?b) Did this method of generating telephone numbersresult in a simple random sample (SRS) of localresidences? Explain.c) Did this method generate an SRS of local voters?Explain.d) Is this method unbiased in…
a. A random sample of 150 approved mortgage applications is selected from a bank's database. Customers of this bank can choose either variable or interest-only mortgages. These mortgage choices have either a 20-year or 30-year term. The data are displayed i table below. Term Type of Mortgage 20-year Total 30-year 25 Variable 45 Interest Only 40 40 Total Use the table above to answer the questions below. i. If an approved application is selected at random, what is the probability that it is a 30-year term application? ii. If an approved application is randomly selected, what is the probability that the mortgage choice is variable and has a term of 20 years or is interest only and has a term of 20 years?
23. Education Level and Smoking At a large factory, the employees were surveyed and classified according to their level of education and whether they smoked. The data are shown in the table. Educational level Not high High school College graduate school Smoking habit graduate graduate 19 25 Smoke 6. 14 Do not smoke 18 7. If an employee is selected at random, find these prob- abilities. a. The employee smokes, given that he or she gradu- ated from college. b. Given that the employee did not graduate from high school, he or she is a smoker.
. A swimmer, Sarah, hopes to compete in an upcoming meet. There are 8 team members eligible for the breaststroke event at the meet, but only 1 team member will be randomly selected to compete in that event. There are 4 team members eligible for the butterfly event at the meet, but only 1 team member will be randomly selected to compete in that event. Sarah is eligible to compete in both events. What is her chance of being selected for at least one of the two events? Select one: a. 1 in 4 b. 1 in 8 c. 3 in 8 d. 3 in 12
Alice has a garden containing 9 carnations, 12 roses, and 6 dahlias. Alice randomly selects 6 of these flowers to give to her math teacher. Let X = the number of the selected flowers which are roses.a. a) How many possible ways are there to select the 6 out of 27 flowers (order does not matter) without replacement? b. What is the probability that X = 6 c. What is the probability that X=3? d. What is the probability that X > 3? e. What is the expected value of X? f. What is the standard deviation of X? g. What is the probability that X is within 1.0 standard deviation of its expected value? h. What is the probability that X = 2.6667? Add any comments below.

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