Joseph conducted a study on night owls (individuals who sleep after 12am on average every night) among staff and students in school. He gathered the following results on rates:

Rate(Night Owl | Student) = 0.7

Rate (Non-Night Owl | Staff) =0.4

Which of the following statements is true?

(1 mark)

1) Rate (Non-night Owl) must be between 0.6 and 0.7.

2) Rate (Non-night Owl) must be between 0.4 and 0.7.

3) Rate (Night Owl) must be between 0.4 and 0.7

4) Rate (Night Owl) must be between 0.6 and 0.7