Monday

November 24, 2014

November 24, 2014

Posted by **Juliet** on Sunday, May 5, 2013 at 10:57pm.

- Math- Statistics -
**MathGuru**, Monday, May 6, 2013 at 7:09pmUse the normal approximation to the binomial distribution.

mean = np = 80 * .6 = ?

standard deviation = √npq = √(80 * .6 * .4) = ?

Calculate. (Note: q = 1 - p)

Next use z-scores:

z = (x - mean)/sd

x = 80 * .5 = ?

Once you have the z-score, find the probability using the z-table.

I hope this will help get you started.

**Answer this Question**

**Related Questions**

stats - This week we practice with Binomial Distribution. You can use Appendix ...

statistics - 2. Assume that the population proportion of adults having a college...

statistics - Based on data collected by the National Center for Health ...

statistics - A random sample of 80 youths and a second random sample of 120 ...

statistics - opinion polls find that 16 percent of americans adults claim that ...

statistics - A nationwide study indicated that 27% of adults said that chocolate...

Statistics - In a certain city of several million people, of the adults are ...

Probability and Statistics - The proportion of adults living in a small town who...

Probability and Statistics - The proportion of adults living in a small town who...

statistics - Assume that body temperatures of healthy adults are normally ...