When calculating probability, we are comparing the number of favorable outcomes to the number of possible outcomes. To calculate the probability that a randomly chosen teacher is a reading teacher we will use the Probability Formula.
P=Favorable Outcomes/Possible Outcomes
At the conference, there is a total of 12 math, 9 science, 3 music and 6 social studies teachers. The sum of these values is the number of possible outcomes.
12+9+3+6= 30 teachers
Out of these, 0 are reading teachers, which is the number of favorable outcomes. Now we have enough information to calculate P(reading).
P(reading)=0/30=0
Therefore the probability of choosing a reading teacher is 0.
