Q3. Recent records show that 40% of candidates become unsuccessful in Whelers Hill rescuetraining scheme. Suppose that 5 candidates took the test independently under the trainingscheme.(a) Why would you choose binomial distribution for this problem?(b) Assuming x is the number of successful candidates, construct the probabilitydistribution and draw a bar graph.(c) What is the probability that at least 2 candidates will be successful?(d) What is the probability that exactly 2 candidates will be unsuccessful?Q4. An average of 0.5 robberies occur per day in a large city. Using the Poisson formula, findthe following probabilities.(a) Exactly 4 robberies will occur in the next week(b) At least 2 robberies will occur on a given dayQ5. Breckie Electrics makes electric shavers. The life x of an electric shaver manufactured bythis corporation has a normal distribution with a mean of 70 months and a standard deviationof 10 months. The company is to determine the warranty period for this shaver. Any shaverthat needs a major repair during this warranty period will be replaced free by the company.(a) What should the warranty period be if the company does not want to replace more than5% of the shavers?(b) Find x such that 90% of shavers life is less than x?(c) What percentage of shavers do not need major servicing before 90 months?

Name: Q3. Recent records show that 40% of candidates become unsuccessful in
Uploaded: 2024-03-20T07:06:41.000Z
Channel: Bartleby
Description: Q3. Recent records show that 40% of candidates become unsuccessful in Whelers Hill rescuetraining scheme. Suppose that 5 candidates took the test independently under the trainingscheme.(a) Why would you choose binomial distribution for this problem?

Since you have posted a multiple questions, we will solve the first complete question and request…

Math

Statistics

Q3. | Recent records show that 40% of candidates become unsuccessful in Whelers Hill rescue training scheme. Suppose that 5 candidates took the test independently under the training scheme. (a) Why would you choose binomial distribution for this problem? (b) Assuming x is the number of successful candidates, construct the probability distribution and draw a bar graph. (c) What is the probability that at least 2 candidates will be successful? (d) What is the probability that exactly 2 candidates will be unsuccessful?

Q3. | Recent records show that 40% of candidates become unsuccessful in Whelers Hill rescue training scheme. Suppose that 5 candidates took the test independently under the training scheme. (a) Why would you choose binomial distribution for this problem? (b) Assuming x is the number of successful candidates, construct the probability distribution and draw a bar graph. (c) What is the probability that at least 2 candidates will be successful? (d) What is the probability that exactly 2 candidates will be unsuccessful?

College Algebra

7th Edition

ISBN:9781305115545

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter9: Counting And Probability

Section9.3: Binomial Probability

Problem 2E: If a binomial experiment has probability p success, then the probability of failure is...

See similar textbooks