Ask Question, Ask an Expert


Ask Statistics and Probability Expert

Attempt all the problems.


problem1) Prof. Hardtack gave four Friday quizzes last semester in his 10-student senior tax accounting class as follows:

Quiz 1    60    60    60    60    71    73    74    75    88    99
Quiz 2    65    65    65    65    70    74    79    79    79    79
Quiz 3    66    67    70    71    72    72    74    74    95    99
Quiz 4    10    49    70    80    85    88    90    93    97    98

a) find out the mean, median, mode for each quiz.

b) Based on the results obtained in (a) above, indicate measure of central tendency you will like to use for each of the quizzes with reasons.    

problem2) A biometric security devise using fingerprints erroneously refuses to admit 1 in 1000     authorized persons from the facility containing classified information. The device will erroneously admit 1 in 10,00,000 unauthorized persons. Suppose that 95% of those who seek access are authorized. If the alarm goes off and a person is refused admission, what is the probability which really authorized?

problem3) Assume waiting time to get food after placing the order at the fast-food restaurant is exponentially distributed with the mean of 60 seconds. If a randomly selected customer orders food at the restaurant, what is the probability that the customer would have to wait at least two minutes?

problem4) A family has two children – one male child and the other female child. Both the children are grown up and their daily expenditure is believed to be normally distributed with the mean of Rs.80 and Rs.60 for the male and the female child with standard deviation of Rs.20 and Rs.10 respectively. Determine the probability that two children together have an expenditure of more than Rs. 160.  


Case Study

Car manufacturer who is producing cars at a rate of 4000 cars a month needs to procure ignition equipment from vendors. Company has the policy of placing orders for 12000 ignition equipment every time they order. The vendor has indicated that 3 % of the ignition equipment is likely to be faulty in each shipment. As it is not possible to test each and every ignition equipment by the car manufacturer, manufacturer decides to randomly sample 200 ignition equipment and if more than 2 of them are found to be defective the entire batch of order shall be returned back.

Case problems:

a) What sampling method will you suggest for car manufacturer?

b) What is the probability that the batch would be returned back to the vendor.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M93230
  • Price:- $60

Guranteed 36 Hours Delivery, In Price:- $60

Have any Question? 

Related Questions in Statistics and Probability

Three different brands of pain relief medication are

Three different brands of pain relief medication are available for minor aches and pains. It is of interest to know whether the mean time to relieve the pain differs from brand to brand. To find out, twelve individuals w ...

Imagine that you are a college professor you notice that

Imagine that you are a college professor. You notice that fewer students appear to attend class on Friday afternoons when the weather is warm than when it is cold outside. To test your hunch, you collect data regarding o ...

Discuss the changes to european imperialism between the

Discuss the changes to European imperialism between the World Wars.

Is there any difference between the proportion of americans

Is there any difference between the proportion of Americans who wish they were rich and the proportion of Canadians who wish they were rich? A random sample of 1,000 Americans showed that 550 wish they were rich, while a ...

Consider the extensive-form game and the scenario shown in

Consider the extensive-form game and the scenario shown in given Figure. a. Compute belief probabilities that are consistent with this scenario. b. For each player, at each of his information states, compute the sequenti ...

What is the difference between the standard deviation

What is the difference between the standard deviation, standard error of the mean, and standard error of the estimate? Discuss and offer examples.

44nbspof a certain countrys voters think that it is too

44% of a certain country's voters think that it is too easy to vote in their country. You randomly select 12 likely voters. Find the probability that the number of likely voters who think that it is too easy to vote is ( ...

Net exports are calculated by subtracting imports from

Net Exports are calculated by subtracting Imports from Exports. Assume Exports and Imports are independent of one another.  If mean exports are $25M with a standard deviation of $3.5M and mean imports are $30M with a sta ...

Thirty percent of the time a sale at food shoppe is paid

Thirty percent of the time, a sale at Food Shoppe is paid using a store-issued credit card. A sample of 18 Food Shoppe sales is obtained. Let X represent the number of sales paid for using the store-issued credit card. W ...

For each experiment described below identify any confounds

For each experiment described below, identify any confounds that may be present. (Be careful not to identify things as confounds that are not.) Then, redesign each study to eliminate any confounds that you find. Write a ...

  • 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