Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

1.  A study of American Airlines flights showed that of 150 flights sampled, 108 were on time, 30 were late, and the rest were early.

A.  If we were to randomly choose an American Airlines flight, find out the probability that it would be on time?

B.  Randomly choose an American Airlines flight. Find out the probability that it is either on time or early?

C.  Randomly choose two independent American Airlines flights. Find out the probability that both of flights selected will be on time?

2. A random sample of 1000 people was taken. Each participant was cross-classified by their religious affiliation and their political affiliation. The study attempted to find if members of various religions tended to vote differently from each other. Express all answers as decimals rounded to 3 places.

 

Democrat(D)

Republican(R)

Independent(I)

Totals

Protestant (P)

310

360

60

730

Catholic (Ca)

120

69

11

200

Jewish (J)

29

13

8

50

Other (O)

10

6

4

20

Totals

469

448

83

1000

A.  Randomly select someone from the sample. Find out the probability that they're Jewish and Democrat?

B.  Randomly choose someone from the study. Given that they're Republican, find out the probability that they're Catholic?

C.  Find out the probability that someone from this study is either Democrat or Protestant?

d. Choose two people without replacement. Find out the probability that the first is the Catholic

And the second is Jewish

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M918534

Have any Question? 


Related Questions in Statistics and Probability

The potential revenues of all projects are in fact

The potential revenues of all projects are in fact uncertain. The company determines that the revenue for project 1 is following a uniform distribution ranging from $1,200,000 to $2,000,000. The revenue for project 2 is ...

Professor professorson a researcher at greendale community

Professor Professorson, a researcher at Greendale Community College, is interested in the effect of caffeine on the typing speed of students. Professorson obtains a random sample of 8 students who are given 400 mg of caf ...

Assignmentthe production department of the newspaper wants

Assignment The production department of the newspaper wants to ensure that the mean blackness of the print for all newspapers is at least 0.97 on a standard scale in which the target value is 1.0. A random sample of 50 n ...

What is the variation in lsquofalse rejects that is not

What is the variation in ‘False rejects' that is NOT attributable to the Inspectors (as Sum of squares, not as percentage or mean)? 349.4 84.9 264.5 10.58 21.2

Exposure to medicine x during pregnancy was investigated

Exposure to medicine 'x' during pregnancy was investigated for 108 mothers of children with congenital defects and 108 mothers of normal controls. The researchers examined exposure to medicine 'x' during the first trimes ...

George john and thomas are standing first second and third

George, John, and Thomas are standing first, second, and third in a line, respectively. Each one sees the persons standing in front of him. James announces: "I have three red hats and two white hats. I will place a hat o ...

In a normal distribution what percentage of scores fall

In a normal distribution, what percentage of scores fall between -1 and +1 standard deviations from the mean? Between the mean and -2 standard deviations ? Between the mean and +3 standard deviations?

In onenbsptownnbsp24nbspof all voters are democrats if two

In one town, 24% of all voters are Democrats. If two voters are randomly selected for a survey, find the probability that they are both Democrats. Round to the nearest thousandth if necessary.

1 what are the most common causes of missing data and what

1. What are the most common causes of missing data, and what difficulties do missing data cause? What can be done if data are missing? 2. Comment on the circumstances under which a researcher would consider deleting one ...

Locate one article presenting research using polynomial

Locate one article presenting research using polynomial regression. Your task now is to critique the appropriateness, utility, alternatives, strengths, and weaknesses of the use of statistics to support the hypotheses of ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro