Determining the schoolwork on line

Assignment Help Basic Statistics
Reference no: EM13982754

1. According to a front-page article in The Wall Street Journal, 30% of all students in American universities miss classes due to drinking.8 If 10 students are randomly chosen, what is the probability that at most 3 of them miss classes due to drinking?

2. According to an article in USA Today, 60% of 7- to 12-year-olds who use the Internet do their schoolwork on line.9 If 8 kids within this age group who use the Internet are randomly chosen, what is the probability that 2 of them do their schoolwork on line? What is the probability that no more than 5 of them do their schoolwork on line?

Reference no: EM13982754

Questions Cloud

How the national dna database can be used : How the National DNA Database can be used to provide the Police with new investigative leads and why STR markers are examined?
How much energy is required to ionize a hydrogen atom : Find the wavelength of the emitted photon when an electron makes a transition from the second level to the first level. How much energy is required to ionize a hydrogen atom in its ground state?
Calculate the total energy used by each refrigerator : Calculate the total energy used by each refrigerator over a 10-year lifetime and then compare the total costs--purchase price plus energy cost--assuming electricity costs 10 cents per kilowatt-hour.
Determine the focal length of the projection lens : The projection lens in a certain slide projector is a single thin lens. A slide 23.9 mm high is to be projected so that its image fills a screen 1.74 m high. The slide-to-screen distance is 2.93 m. Determine the focal length of the projection lens..
Determining the schoolwork on line : If 8 kids within this age group who use the Internet are randomly chosen, what is the probability that 2 of them do their schoolwork on line? What is the probability that no more than 5 of them do their schoolwork on line?
A hard time understanding redox reactions : A hard time understanding redox reactions, how would I balance this equation αCr2O2-7(aq)+βH+(aq)+γCu(s)→δCr3+(aq)+?H2O(l)+κCu2+(aq) I don't get it because its not the same as a regular balance.
How does the shape of a molecule affect a person : How does the shape of a molecule affect a person's health? When you look at a nutrition label, would you rather buy something with partially hydrogenated or non-hydrogenated oil? Explain your answer.
What services might a project manager be able to utilize : As the article points out, the service sector is growing not only within the United States, but globally. What services might a project manager be able to utilize from a global workforce using the Internet
Does soap work as well on ink as it does on grease : Does soap work as well on ink as it does on grease? Why or why not? What other clothing stains might you expect to remove with soap?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Diversification problem-bayes probability

You are in charge of investing 10,000 dollars and you are considering three different investment strategies.

  Estimating the probability with the given data

A certain airplane has 2 independent alternators to provide electrical power. The probability that a given alternator will fail on a 1 hour flight is 0.02. What is the probability that (a) both will fail? (b) Neither will fail? (c) One or the othe..

  Probability revenue source comes from corporate income taxes

3% from excise taxes and 5% other. If a revenue source is selected at random, what is the probability that it comes from individual or corporate income taxes?

  Desired margin of error

How large a sample should be taken if the desired margin of error is?

  Assume that p1 is the percentage of lipitor users that

lipitor is a cholesterol reducing drug. in clinical trials 94 subjects were treated with the drug and 200 were given a

  Constructing an explicit isomorphism

If K is infinite, assume f1 and f2 are injective. Prove by constructing an explicit isomorphism that (H x_f1 K) is isomorphic (H x_f2 K)

  Find first four elements selected for simple random sample

Five digit random numbers (e.g.; 601, 022, 448...), determine the first four elements that will be selected for the simple random sample.

  What is the purpose of the anova

The discussion surrounding the ANOVA is very important. This is a widely utilized statistical tool. What is the ANOVA? What is the purpose of the ANOVA? What role does variation have in the discussion? What is the purpose of the F distributio..

  The diameter of ball bearings produced in a manufacturing

the diameter of ball bearings produced in a manufacturing process can be explained using a uniformprobability

  Find probability that number baseball is exactly eight

Find the probability that the number who consider themselves baseball is (a) exactly 8, (b) at least 8, &(c)less than 8.

  Determine the optimal parameter a in the ses method

Implement the SES and DES formulae on a spreadsheet program, and use it to determine the optimal parameter a in the SES method giving the best MAPD8 error on the time-series of the previous exercise.

  The weekly amount spent for maintenance and repairs in a

the weekly amount spent for maintenance and repairs in a certain company has an approximately normal distribution with

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd