In a freshman high school class of 80 students 22 students take consumer education 20 students take French and four students take both which equation can be used to find the probability that a randomly selected student from this class takes consumer education, French or both
The equation that can be used to find the probability that a randomly selected student from this class takes consumer education, French or both is:
P(E or F) = P(E) + P(F) - P(E and F)
Where:
P(E) = Probability that a student takes consumer education
P(F) = Probability that a student takes French
P(E and F) = Probability that a student takes both consumer education and French
Given that:
Total number of students = 80
Number of students taking consumer education (E) = 22
Number of students taking French (F) = 20
Number of students taking both consumer education and French (E and F) = 4
Substitute the values into the formula:
P(E or F) = 22/80 + 20/80 - 4/80
P(E or F) = 38/80
Therefore, the equation that can be used to find the probability that a randomly selected student from this class takes consumer education, French or both is P(E or F) = 38/80.