Explore BrainMass

Explore BrainMass

    determining probability of scoring 80

    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!

    Jessica must finish two courses (much like myself), statistics and economics, in order to complete the requirements for a BA degree. All along she has maintained an 80% average. She has calculated probabilities of scoring in the remaining two courses as follows:

    Probability of scoring 80 in Statistics= 0.80
    Probability of scoring 80 in Economics= 0.40
    Probability of scoring 80 in both= 0.30

    What is the probability that she will score 80 in at least one of her courses? What is the probability that she will NOT score 80 in either course?

    © BrainMass Inc. brainmass.com March 4, 2021, 5:47 pm ad1c9bdddf
    https://brainmass.com/statistics/probability/determining-probability-scoring-10762

    Solution Preview

    a) What is the probability she will score 80% in at least one of her courses?
    b) What is the probability she will NOT score 80% in either course?
    a) I think one difficulty with this question is the wording. I take 'at least one' to ...

    Solution Summary

    The solution assists with determining probability of scoring 80 in Statistics, scoring 80 in Economics, and both is given.

    $2.49

    ADVERTISEMENT