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An order for an automobile can specify either an
automatic or a standard transmission, either with or without
air-conditioning, and any one of the four colors red, blue,
black or white. Describe the set of possible orders for this
experiment.

S={(aut, with AC, red), (aut, with AC, blue) …..}

$n(s)=16$

An order for a computer system can specify memory
of $4,8,$ or 12 gigabytes, and disk storage of $200,300,$ or 400
gigabytes. Describe the set of possible orders.

$S=\{(4,200),(4,300),(4,400),(8,200) \ldots . .\}$

$n(s)=9$

Calls are repeatedly placed to a busy phone line until
a connect is achieved. describe the sample space

$b \rightarrow$ busy
$c \rightarrow$ connect

$S=\{c, b c, b b c, \ldots..\}$

$n(s) \rightarrow \infty$