Question

11.2: probability
score: 10/16 answered: 6/10
question 5
giving a test to a group of students, the grades and gender are summarized below
if one student is chosen at random,
find the probability that the student did not get an \a\
question help: video 1 video 2
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Explanation:

Step1: Find the number of students who got an "A"

From the table, the total number of students who got an "A" is $22$.

Step2: Find the total number of students

The total number of students is $73$.

Step3: Calculate the number of students who did not get an "A"

The number of students who did not get an "A" is $73 - 22=51$.

Step4: Calculate the probability

The probability $P$ that a student did not get an "A" is given by the formula $P=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}$. So $P = \frac{51}{73}$.

Answer:

$\frac{51}{73}$