Purchase Solution

Probablity questions

Not what you're looking for?

Ask Custom Question

I would like some help with the following questions please:

A certain airplane has two independent alternators to provide electrical power. The probability that a given alternator will fail on a 1-hour flight is .02. What is the probability that (a) both will fail? (b) Neither will fail? (c) One or the other will fail? Show all steps carefully.

The probability is 1 in 4,000,000 that a single auto trip in the United States will result in a
fatality. Over a lifetime, an average U.S. driver takes 50,000 trips. (a) What is the probability of a fatal accident over a lifetime? Explain your reasoning carefully. Hint: Assume independent events. Why might the assumption of independence be violated? (b) Why might a driver be tempted not to use a seat belt "just on this trip"?

Purchase this Solution
Solution Summary

Step by step solutions are provided.

Solution provided by:
Sandhya Sharma, MSc
Education
  • BSc, Meerut University
  • MSc, Meerut University
  • MPhil, Institute of Advanced Studies
  • MSc, AIT
Recent Feedback
  • "Perfect, thank you so much!!! I will definitely request you in the future! You are amazing!"
  • "Thank you. "
  • "Thank you so much I have two more that I need your help with if your available."
  • "Thank you, I was wondering why you rejected me the first time."
  • "Thanks again."
Purchase this Solution
Free BrainMass Quizzes
Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

View More Free Quizzes
Related BrainMass Solutions

  • Probability of event occurring

    21135 Probability questions a)Probablity an event is likely to occur? b) P of an impossible event? c) Sample space consists of 25 separate events equally likely. What is P of each? d) True/False test. P of correct if a random guess?

  • Probability: Balls in an Urn

    1) Total number of balls = n+m Number of white balls = n Probability that all n white balls are left back in the urn = n/(n+m) 2) Total number of balls in the urn = 5 + 10 = 15 Probablity that a white ball is drawn = 5/15 = 1/3 Probablity that

  • Microscopic Toolmark Analysis

    I then multiplied the 1/2,200,000 x 256 to obtain 1/568,000,000: the probablity that 8 striae out of the 27 will match in spatial relationship and density.

  • A number of probablity problems and solutions

    n1 = 2 No of selections for trait 2 (yellow or green), n2 = 2 No of selections possible for trait 3 (white or purple flowers), n3 = 2 No of classifications for the peas therefore = n1 x n2 x n3 = 2 x 2 x 2 = 8 {SEE ATTACHMENT for full questions

  • Descriptive Analysis

    Problem 4: Use whatever statistical tools will help you to answer the questions below. Take the HWAS data as a sample of online statistics students. Assume that the distribution is normal.

  • Probability : Random Selection and Conditional Probability

    So the probablity that the ball selected from urn II is white is 2/(2+1)=2/3. In the other case, the probablity that the randomly-chosen ball from urn I is red is 4/(2+4)=2/3 and then urn II will contain 1 white ball and 2 red balls.

  • Random Sample for Binomial Probability Distribution

    Using the binominial probablity distribution, calculate the probability of having 3 or fewer red balls in a sample of 20 balls removed randomly from the urn... We have 90 black balls and 10 red balls in the urn.

  • Hourly workers mean wage calculation

    What is the probablity that the sample mean is at least $ 13.80 per hour, given a random sample of {n=50 workers} The solution calculates the mean wage for hourly workers based on the population statistics.

  • Probability

    338361 Probablity: Computer Specialty Manufacturer Support Department A computer specialty manufacturer has a two-person technical support staff who work independently of each other.

View More Related Solutions