Last semester, a certain professor gave 36 As out of 390 grades. If one of the professor's students from last semester were selected randomly, what is the probability that student received an A? (Assume that each student receives one grade.)
36/390
Probability can be represented as a reduced fraction or as a decimal
0.09 1/4
To find the probability that a student received an A, we need to divide the number of A grades by the total number of grades.
1. Calculate the probability:
Probability = Number of A grades / Total number of grades
2. Substitute the values:
Probability = 36 / 390
3. Simplify the fraction if possible:
Probability = 6 / 65
So, the probability that a student received an A is 6/65.
To find the probability that a student received an A, we need to divide the number of students who received an A by the total number of students.
First, we know that the professor gave 36 As out of 390 grades. So, there were 36 students who received an A.
To find the total number of students, we need to know how many grades were given out. Since one student receives one grade, the total number of students is equal to the total number of grades, which is 390.
Therefore, the probability that a student received an A is given by:
Probability = Number of students who received an A / Total number of students
= 36 / 390
To simplify the fraction, we can divide both the numerator and denominator by their greatest common divisor, which is 6:
Probability = 6 / 65
Thus, the probability that a randomly selected student received an A is 6/65.