Interactive practice questions
A hairdressing salon at a local shopping centre records the number of customers per day and the results are shown in the graph below.
Comment on the trend and seasonality of the data. Select all that apply.
There is a downwards trend over time.
The trend is that the numbers stay stable.
There is an upwards trend over time.
There are $4$4 seasons in a cycle.
There are $5$5 seasons in a cycle.
The table below shows some time series data where $t$t represents time.
A cat boarding kennel records its number of boarders every $4$4 months (tri-annually) ending at January, May and September.
A ballet company performed $4$4 times a week for four weeks at the Perth Concert Hall which is able to seat $1731$1731 patrons. To break even the attendance must be more than $60%$60% of maximum capacity. The attendance at the daily performances are shown in the table below.