Explore BrainMass

Explore BrainMass

    Probability

    Not what you're looking for? Search our solutions OR ask your own Custom question.

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    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?

    © BrainMass Inc. brainmass.com March 4, 2021, 5:57 pm ad1c9bdddf
    https://brainmass.com/statistics/probability/20280

    Solution Preview

    Probability of a car having its oil topped = p = 1/4 = 0.25
    <br>Probability of a car not having its oil topped = q = 1 - 0.25 = 0.75
    <br>
    <br>
    <br>a.)
    <br>Probability that 3 of 10 ...

    Solution Summary

    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?

    $2.49

    ADVERTISEMENT