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almond37 [142]
4 years ago
9

In a math class with 30 students, a test was given the same day that an assignment was due. There were 21 students who passed th

e test and 22 students who completed the assignment. There were 18 students who passed the test and also completed the assignment. What is the probability that a student chosen randomly from the class passed the test and completed the homework?
Mathematics
1 answer:
UkoKoshka [18]4 years ago
4 0

Answer:

The probability that a student chosen randomly from the class passed the test and completed the homework is 3/5

Step-by-step explanation:

No. of students passed the test = 21

No. of students completed the assignment = 22

No. of students who passed the test and also completed the assignment = 18

Total no. of students = 30

We are supposed to find the probability that a student chosen randomly from the class passed the test and completed the homework

So,  probability that a student chosen randomly from the class passed the test and completed the homework =\frac{\text{No. of students who passed the test and also completed the assignment}}{\text{Total no. of students}}

Probability that a student chosen randomly from the class passed the test and completed the homework = \frac{18}{30}= \frac{9}{15}=\frac{3}{5}

Hence the probability that a student chosen randomly from the class passed the test and completed the homework is 3/5

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