Saturday

August 30, 2014

August 30, 2014

Posted by **Anonymous** on Monday, April 30, 2012 at 7:27pm.

- Stat -
**MathGuru**, Tuesday, May 1, 2012 at 6:19pmMean = np = 300 * .06 = ?

Standard deviation = √npq = √(300 * .06 * .94) = ? (Note: q = 1 - p)

Once you have calculated mean and standard deviation, use z-scores to find the probability.

z = (x - mean)/sd

Find two z-scores, using 15 for x and then using 25 for x.

Once you find the z-scores, use a z-table to find the probability between the two scores.

I hope this will help get you started.

**Related Questions**

math Statistics - Suppose that 33 out of 300 selected american drivers read the ...

statistic - A survey of drivers in the United States found that 15% never use a ...

stastics - A survey of drivers in the United States found that 15% never use a ...

statistics - 1.A magazine reported that 6% of Americans read the news paper ...

Statisics - transportation officials tell us that 80% of drivers wear seat belt ...

Statistics - A research center claims that 50% of people believe that drivers ...

MATH PLS HELP - A research center claims that 50% of people believe that drivers...

Math - The Pew Research Center recently polled n= 1048 U.S drivers andfound that...

statistics - twenty percent of drivers drining between 11pm and 3am are drunken ...

statistics - The pew research center recently polled n=1048 u.s. drivers and ...