A sample of 4 different calculators is randomly selected from a group containing 1212 that are defective and 3333 that have no d
1 answer:
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Answer:
Step-by-step explanation:
As the given Augmented matrix is
Step 1 :
↔
Step 2 :
↔
Step 3 :
↔
Step 4 :
↔
,
↔
Step 5 :
↔
Step 6 :
↔
,
↔
∴ we get