Wednesday

July 23, 2014

July 23, 2014

Posted by **Aditi** on Friday, June 24, 2011 at 1:58am.

standard deviation= 15 wpm

a.What is the probability that a randomly selected typist's net rate is at most 60 wpm? less than 60 wpm?

b. What is the probability that a randomly selected is between 45 and 90 wpm?

- statistics -
**PsyDAG**, Friday, June 24, 2011 at 11:49amZ = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions/probabilities related to the Z scores.

**Related Questions**

Typing - When determining wpm (words per minute), does it include typing numbers...

alegbra - The learning curves describes the rate at which a person learns ...

College Math - The "learning curve" describes the rate at which a person learns ...

statistics - Assume that women's heights are normally distributed with a mean ...

Alegbra - the learning curve describes the rate at which a person learns certain...

statistics - Scores on a visual perception test are normally distributed with a ...

Statistics - Scores on a visual perception test are normally distributed with a ...

statistics - assume that adults have IQ scores that are normally distributed ...

Statistics - Suppose that the birth weight of newborn babies in the U.S is ...

Statistics - 9. Assume the weight, W, of a randomly selected adult has a normal...