3 years ago

Find the difference 726-477=

Mathematics

2 answers:

Tanzania [10]3 years ago

7 0

Its 249 because the difference 726-447 is 249

azamat3 years ago

5 0

The difference of 726 and 477 is 249

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Answer:

Step-by-step explanation:

Given

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using Binomial distribution

$^nC_r(p)^r(q)^{n-r}$

here p=0.17

q=1-0.17=0.83

(a)none will have valid license i.e. r=0

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(b)Exactly one have invalid license i.e. r=1

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$P(r\geq 2)=1-P(r=0)-P(r=1)$

$P(r\geq 2)=1-0.0114-0.0561$

$P(r\geq 2)=0.932$

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