Ask Question
7 May, 05:42

A class consists of 55% boys and 45% girls. It is observed that 25% of the class are boys and scored an A on the test, and 35% of the class are

girls and scored an A on the test.

If a student is chosen at random and is found to be a girl, the probability that the student scored an Ais

+4
Answers (1)
  1. 7 May, 07:09
    0
    Step-by-step explanation:

    Probability of event A on the condition of event B is:

    P (A|B) = P (A and B) / P (B)

    P (scored an A | girl) = P (scored an A and girl) / P (girl)

    P (scored an A | girl) = 0.35 / 0.45

    P (scored an A | girl) = 0.778

    The probability that a randomly selected girl also scored an A is 77.8%.
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “A class consists of 55% boys and 45% girls. It is observed that 25% of the class are boys and scored an A on the test, and 35% of the class ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers