$[$The following information applies to the questions displayed below.$]$

The following are the car repair shop data:

Ticket No$.$ Work Ticket No$.$ Work Ticket No$.$ Work

$1$ Lube & oil $11$ Lube & oil $21$ Lube & oil

$2$ Lube & oil $12$ Tires $22$ Brakes

$3$ Lube & oil $13$ Tires $23$ Transmission

$4$ Tires $14$ Lube & oil $24$ Tires

$5$ Tires $15$ Lube & oil $25$ Brakes

$6$ Brakes $16$ Lube & oil $26$ Lube & oil

$7$ Brakes $17$ Lube & oil $27$ Brakes

$8$ Tires $18$ Lube & oil $28$ Lube & oil

$9$ Lube & oil $19$ Battery $29$ Brakes

$10$ Battery $20$ Lube & oil $30$ Tires