Questions from Statistics Principles

Q: P(56 < X < 68)

P(56 < X < 68)

Q: To determine customer opinion of its boarding policy, Southwest Airlines randomly

To determine customer opinion of its boarding policy, Southwest Airlines randomly selects 60 flights during a certain week and surveys all passengers on the flights.

Q: P(55 ≤ X ≤ 70)

P(55 ≤ X ≤ 70)

Q: P(40 ≤ X ≤ 49)

P(40 ≤ X ≤ 49)

Q: P(38 < X ≤ 55)

P(38 < X ≤ 55)

Q: P(56 ≤ X < 66)

P(56 ≤ X < 66)

Q: The 9th percentile

The 9th percentile

Q: The 90th percentile

The 90th percentile

Q: The 81st percentile

The 81st percentile

Q: The 38th percentile

The 38th percentile