# Down syndrome

Down syndrome is one of the serious diseases caused by a gene mutation. Down syndrome occurs in approximately every 550-born child. Express the incidence of Down's syndrome in newborns at per mille.

Result

p =  1.818

#### Solution:

$p=1000 \cdot \ \dfrac{ 1 }{ 550 }=\dfrac{ 20 }{ 11 } \doteq 1.8182 \doteq 1.818 \ ‰$ Our examples were largely sent or created by pupils and students themselves. Therefore, we would be pleased if you could send us any errors you found, spelling mistakes, or rephasing the example. Thank you!

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