Friday

December 19, 2014

December 19, 2014

Posted by **Randy** on Sunday, September 26, 2010 at 6:53pm.

- statistics -
**MathGuru**, Monday, September 27, 2010 at 4:49pmYour values are the following:

p = .45, q = 1 - p = .55, x = 45, and n = 110

Use the normal approximation to the binomial distribution.

Find mean and standard deviation.

mean = np = (100)(.45) = ?

sd = √npq = √(100)(.45)(.55) = ?

Once you determine the mean and standard deviation, use z-scores and z-table to find probability:

z = (x - mean)/sd

Substitute the values into the formula. Once you have the z-score, determine your probability using a z-table.

I hope this will help get you started.

- statistics -
**MathGuru**, Monday, September 27, 2010 at 4:52pmCorrection:

Use 110 for n.

**Answer this Question**

**Related Questions**

Statistics - Assume that about 45% of all U.S. adults try to pad their insurance...

Statistics - Assume that about 45% of all U.S. adults try to pad their insurance...

Statistics - Assume that about 45% of all U.S. adults try to pad their ...

Statistics - Assume that about 45% of all U.S. adults try to pad their insurance...

Statistics - Assume that about 45% of all U.S. adults try to pad their insurance...

Statistics - Assume that about 45% of all U.S. adults try to pad their insurance...

statistics - According to the book Are you Normal?,40% of all US adults try to ...

statistics - According to the book Are you Normal?,40% of all US adults try to ...

statistics - According to the book Are yoy Normal?, 40% of all US adults try to ...

Health care - Please check my anser thank you :) You work in a doctor's office ...