An aircraft has 120 passenger seats. The number of seats occupied during 100 flights is given in the following table. Number of seats100−104104−108108−112112−116116−120Frequency1520321815 Determine the mean number of seats occupied over the flights.

An aircraft has 120 passenger seats. The number of seats occupied duri

1.	An aircraft has 120 passenger seats. The number of seats occupied during 100 flights is given in the following table. Number of seats100−104104−108108−112112−116116−120Frequency1520321815 Determine the mean number of seats occupied over the flights.
Answer» An aircraft has 120 passenger seats. The number of seats occupied during 100 flights is given in the following table. $\begin{matrix} Number of seats & 100 - 104 & 104 - 108 & 108 - 112 & 112 - 116 & 116 - 120 Frequency & 15 & 20 & 32 & 18 & 15 \end{matrix}$ Determine the mean number of seats occupied over the flights.