+1-415-315-9853

info@mywordsolution.com

## Statistics

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

### Discuss how a human rights approach may aid or obstruct the

Discuss how a Human Rights Approach may aid or obstruct the resolution of these three themes: 1. Poverty 2. The Syrian Refugee crisis 3. The death penalty For each theme, please make sure you discuss the human rights iss ...

### Suppose that x is a continuous random variable with pdf fxx

Suppose that X is a continuous random variable with pdf fx(x) = (lambda/2)e-lambda(abs(x)) for -infinity (question also attached for clarity)

### A caterer is competing for a companys business the caterer

A caterer is competing for a company's business. The caterer randomly selects a past client and submits a tasting menu consisting of all the dishes prepared for the past client. What type of sample is this? A college fac ...

### An alternative to the experiment in q3 to investigate

An alternative to the experiment in Q.3 to investigate whether loud music tends to increase the time it takes mice to complete a maze would involve randomly assigning say, 50 mice to two groups. The 25 mice in Group A (c ...

### A research concludes that the number of hours of exercise

A research concludes that the number of hours of exercise per week for adults is normally distributed with a mean of 3.5 hours and a standard deviation of 3 hours. (a) Find the 75th percentile for the distribution of exe ...

### An economist wants to estimate the mean per capita income

An economist wants to estimate the mean per capita income (in thousands of dollars) for a major city in Texas. He believes that the mean income is \$23.8, and the standard deviation is known to be \$8.9. How large of a sam ...

### 1 what are the most important threats to validity that

1. What are the most important threats to validity that occur in quasi experimental research designs when the research is conducted over a period of time? What techniques can be used to minimize these potential interpret ...

### To test the model you will make 5 trades using 5 different

To test the model, you will make 5 trades using 5 different sets of data. You may define the parameters of the put call parity or use the following assumption for the parameters: Interest rate is 5%Transaction costs for ...

In your words, demonstrate your understanding on the following concepts: a) Survival analysis b) Life table c) Kaplan-Meier curve d) Logrank test e) Negative exponential survival distribution f) Cox proportional hazards ...

### 1 in may the mean price of gas in the buffalo area was 2714

1. In May, the mean price of gas in the Buffalo area was \$2.714 per gallon with a standard deviation of \$0.045. In a sample of 32 gas stations, what percentage will have a price per gallon of gas between \$2.695 and \$2.72 ...

• 13,132 Experts

## 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.

### 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