Probability-gas station pump

Assignment Help Basic Statistics
Reference no: EM13103917

Gas Station pump signs, at one chain, encourage customers to have their oil checked, claiming that one out of every four cars should have its oil topped.

a.) What is the probability that exactly 3 of the next 10 cars entering a station should have their oil topped?

b.) What is the probabily that at least half of the next 20 cars entering a station should have their oil topped?

Reference no: EM13103917

Questions Cloud

Slot machine probability : A slot machine in Reno costs $1 to play. If the jackpot is $1,000 and the expected value is $ - 0.50 find the probability of winning.
What is the ratio of the final total charge : Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of +3q. Sphere B carries a charge of -q. Sphere C carries no net charge.
Judy holmes tire dealership problem : In the past, Judy Holmes's tire dealership sold an average of 1,000 radials each year. In the past two years, 200 and 250, respectively, were sold in fall, 350 and 300 in winter, 150 and 165 in spring, and 300 and 285 in summer.
Question about simple probability : A factory finds,on average, 20% of the widgets produced by a given machine will be defective for certain specified requirements.
Probability-gas station pump : Gas Station pump signs, at one chain, encourage customers to have their oil checked, claiming that one out of every four cars should have its oil topped.
Compute the economic order quantity : A large bakery buys flour in 25-pound bags. The bakery uses an average of 4,800 bags a year. Preparing an order and receiving a shipment of flour involves a cost of $10 per order.
Sampling without replacement : That a sample of 40 females gives an average production which is more than that based on a sample of 36 males by more than 6 items, assuming sampling with replacement, and that, the sample size for the two sexes being the same, the average product..
Determine approach issue of disparate development : Determine the best way to approach issue of disparate development since their separation at birth? Use the information and research on Nature versus Nurture issue to explain what occurred to the identical twins.
Population mean height of treated plants : At the 0.05 level of significance can it be concluded that the population mean height of treated plants is difference from 38 centimeters?

Reviews

Write a Review

 

Basic Statistics Questions & Answers

  Concept of probabilities

Be sure to include information about how you would use the concept of probabilities to apply to profiles for hiring more satisfied individuals.

  Confidence interval estimate of mean number migraine attacks

Construct the 95% confidence interval estimate of the mean number of migraine attacks for those treated with acupuncture.

  Determining bivariate normal distribution

Cores on two tests have a bivariate normal distribution; and that correlation of 2 scores is 0.8. Determine the probability that sum of the student's scores on 2 tests will be greater than 200?

  Find the explanatory variable in this study

The researchers planned to use simple linear regression to see if the age at which a baby was first able to crawl could be predicted from the average outdoor temperature six months after each baby's birthdate.

  Calculate the confidence interval

You read a report that says, "On the basis of the simple random sample of 100 high school seniors that took the SATM test this year, a confidence interval for  µ  is found to be 512.00 ± 25.76."  What was the confidence level used to calculate this..

  Risk neutral probability and value of call option

A stock price is currently $100. Over each of the next two three-month periods it is expected to increase by 10% or fall by 10%. Consider a six-month European call option with a strike price of $105.

  Lack of randomization

A major problem resulting from the lack of randomization in a cohort study is: the possibility that a factor that led to the exposure, rather than the exposure itself, might have caused the disease.

  Introduction to fit a fifth-order autoregressive model

You are given an annual time series with 40 consecutive values and asked to fit a fifth-order autoregressive model.

  Topic on probability

The condition for the question is that the deck of cards has 52 cards and among them are 12 face cards. What is the probability of choosing 6 face cards out of 8 chosen. Thru Binomial distribution holds( meaning with replacement)

  Chebychev inequality for average time

A researcher wants to estimate the average time (in minutes) spent in a car daily. This will be done by randomly surveying 300 individuals and calculating the sample mean.

  Statistics-factor analysis

Describe a research problem that would benefit from Factor Analysis. What are the variables and what would you hope to achieve?

  Determining poisson distribution and probability

The owner of a small computer store personally sells one computer per week on the average. Use the Poisson distribution to find the probability of randomly selecting a week in which she personally sold three computers.

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