ЁЯУв Too many exams? DonтАЩt know which one suits you best? Book Your Free Expert ЁЯСЙ call Now!


    Question

    A bag contains 8 yellow balls, 7 orange balls, and 3

    blue balls. Two balls are drawn at random. Find the probability that the two balls are yellow.
    A 8/51 Correct Answer Incorrect Answer
    B 22/153 Correct Answer Incorrect Answer
    C 26/153 Correct Answer Incorrect Answer
    D 28/153 Correct Answer Incorrect Answer

    Solution

    Number of ways of selecting two yellow balls = 8 CтВВ
    Total number of balls = 8 + 7 + 3 = 18
    Number of ways of selecting two balls = 18 CтВВ
    Probability = 8 CтВВ ├╖ 18 CтВВ = (8 ├Ч 7) ├╖ (18 ├Ч 17) = 56 ├╖ 306 = 28/153

    Practice Next
    More Probability Questions
    ask-question