Work Step by Step
The probability of z being larger than 0.25 and smaller than 1.25 is the probability of z being smaller than 1.25 minus the probability of z being smaller than 0.25: 0.8944-0.5987=0.2957.
You can help us out by revising, improving and updating this answer.Update this answer
After 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.