A leisure company operates three amusement arcades in the UK: atRedcar, Skegness and Torquay. As part of a performance review theduration in minutes of the period spent in the arcades by each of asample of customers visiting was recorded.
The durations of visits made by 21 customers visitng theRedcar arcade were :
23 8 39 72 73 13 44 74 37 37 21
21 27 27 34 31 32 43 74 44 36 36 23Â Â
The figures for 18 customers visiting the Skegnessarcade were:
31 51 69 12 53 28 36 28 36 30
35 45 48 25 9 32 60 66
The figures for 20 customers visiting the Torquay arcadewere:
3 19 1 15 21 9 7 20 10 2
6 2 11 37 10 6 10 14 3 5
(A) Classify both sets of data into grouped frequencydistributions
(B) Calculate the relative frequency for each class of all threedistributions
(C) The company expects customers to spend at least 20 minuteson visits to their arcades.
Use your relative frequency figures to compare the performancesof the arcades in this respect.
