eighteen old batteries, seven of which are totally dead. a) The first two you choose are both good. b) At least one of the first three works. c) The first four you pick all work. d) You have to pick five batteries to find one that works. a) The probability that the first two you choose are both good is (Round to three decimal places as needed.)

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### Probability Problem: Battery Selection

A junk box in your room contains eighteen old batteries, seven of which are totally dead. You start picking batteries one at a time and testing them. Find the probability of each outcome:

a) The first two you choose are both good.  
b) At least one of the first three works.  
c) The first four you pick all work.  
d) You have to pick five batteries to find one that works.

#### Calculations

a) The probability that the first two you choose are both good is [____].  
*(Round to three decimal places as needed.)*
Transcribed Image Text:### Probability Problem: Battery Selection A junk box in your room contains eighteen old batteries, seven of which are totally dead. You start picking batteries one at a time and testing them. Find the probability of each outcome: a) The first two you choose are both good. b) At least one of the first three works. c) The first four you pick all work. d) You have to pick five batteries to find one that works. #### Calculations a) The probability that the first two you choose are both good is [____]. *(Round to three decimal places as needed.)*
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