Activity 2
Answer the questions:
24 male students and 12 female students are participating in an international conference in Poznan.
Question 1: What is the ratio of males to females?
Question 2: What proportion of the participants is male?
Question 3: What does standard deviation mean?
- The norm.
- The average difference from the norm.
- The standard of something.
Question 4: If 27 out of 250 students failed an exam, what proportion, in percentage terms, failed?
Question 5: If the average score in a test is 57, and John scores 38, by how many points has he deviated from the norm?