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In a class of 30 students, the probability of a student being selected for a project is 0.4. What is the expected number of students selected?

Practice Questions

1 question
Q1
In a class of 30 students, the probability of a student being selected for a project is 0.4. What is the expected number of students selected?
  1. 10
  2. 12
  3. 15
  4. 20

Questions & Step-by-step Solutions

1 item
Q
Q: In a class of 30 students, the probability of a student being selected for a project is 0.4. What is the expected number of students selected?
Solution: The expected number of students selected is calculated as 30 * 0.4 = 12.
Steps: 5

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