Thursday
March 23, 2017

Post a New Question

Posted by on Monday, March 5, 2012 at 11:27pm.

The average middle-distance runner at a local high school runs the mile in 4.5 minutes, with a standard deviation of 0.3 minute. Find the percentage of a runners that will run the mile in less than 4 minutes?

  • statistics - , Wednesday, March 7, 2012 at 6:07pm

    Z = (score-mean)/SD

    Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion related to the Z score.

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question