Answer
$z=-1.59$
Work Step by Step
$z=\frac{x-\mu}{\sigma}=\frac{950-1000}{31.46}=-1.59$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.