Question: In a science class: 70% of students completed the project. Of those, 90% passed the unit test. Of students who didn’t complete the project, 40% passed. What is the overall probability that a randomly selected student passed the test?
A) 0.75
B) 1
C) 1.3
D) 0.36
Correct answer: A
Grade: 8 | Topic: Statistics and Probability | Difficulty: Medium | Standard: 8. SP. A. 4