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One of four calculator batteries is bad. An experiment consists of testing each battery until the dead one is found.
(a) How many possible outcomes are there for this experiment?
(b) Is the outcome GBGG (Good, Bad, Good, Good) possible? Why or why not?

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pedrocarratore

Answer:

(a) 4 possible outcomes

(b) Not possible, testing stops upon finding the bad battery,

Step-by-step explanation:

Let G denote a good battery and B denote a bad battery.

Whenever a bad battery is found, the batteries stop being tested.

(a) The outcomes for this experiment are:

B

GB

GGB

GGGB

There are 4 possible outcomes.

(b) The outcome GBGG is not possible since testing stops upon finding the bad battery, the outcome in this case would be GB.

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