<div dir="ltr"><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">Você quer usar uma normal truncada. Veja o pacote "truncnorm".</span><div style="font-family:arial,sans-serif;font-size:12.727272033691406px">
<br></div><div style="font-family:arial,sans-serif;font-size:12.727272033691406px">Cordialmente,</div>
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