Ask Question
14 June, 07:35

X, Y and Z represent 20%, 30% and 50% 2%, 3% and 5% of students from X, Y and z (respectively) participate in these competitions every year. What is the probability that a randomly selected student participates at annual math competition and belongs to high school X.

+5
Answers (1)
  1. 14 June, 07:55
    0
    the probability is 0.4%

    Step-by-step explanation:

    the probability is equal to the proportion of students of X respect to the total amount of students, assuming that each student is equally likely to be chosen, thus:

    Probability = number of students of X that participate / total amount of students = number of students of X / total amount of students * number of students of X that participate / number of students of X = 0.2 * 0.02 = 0.004 (0.4%)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “X, Y and Z represent 20%, 30% and 50% 2%, 3% and 5% of students from X, Y and z (respectively) participate in these competitions every ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers