Question

An aircraft has 120 passenger seats. The number of seats occupied during 100 flights is given in the following table : Number of seats 100-104 104-108 108-112 112-116 116-120 and Frequency 15 20 32 18 15 Determine the mean number of seats occupied over the flights.

Answer 1

So just
u first make a table then find the class mark and name it as Xi and the the frequency as Fi then ✖ multiply fi and Xi and then add all the fixi and also add fi then
divide fixi ➗ Xi

Answer 2

Answer:

Step-by-step explanation:

no of seats  class mark    frequency      fixi

100-104          102               15                 1530

104-108          106               20                 2120

108-112           110                32                 3520                                                            112-116            114                18                  2052

116-120           118                15                  1770

                                      N= 100              10992

Mean= fixi/fi

           10992/100= 109.92

Hence mean is 109.92 passengers.

Hope it help . Mark as brainlist.