Nevada Jury Instructions
RES IPSA LOQUITUR; PERMISSIBLE INFERENCE OF NEGLIGENCE
From the happening of the [accident] [injury] involved in this case, you may draw an inference that a [proximate] [legal] cause of the occurrence was some negligent conduct on the part of the defendant.
However, you shall not find that [proximate] [legal] cause of the occurrence was some negligent conduct on the part of the defendant unless you believe, after weighing all the evidence in the case and drawing such inferences therefrom as you believe are warranted, that it is more probable than not that the occurrence was caused by some negligent conduct on the part of the defendant.
NEV. J.I. 4.19
BAJI 4.02