Sunday

April 20, 2014

April 20, 2014

Posted by **Kayla** on Sunday, February 10, 2013 at 4:28pm.

- Statistics -
**MathGuru**, Sunday, February 10, 2013 at 5:45pmMean = np

Standard deviation = √npq

Note: q = 1 - p

n = 100

p = 0.5

q = 0.5

Once you find the mean and standard deviation, use z-scores:

z = (x - mean)/sd

(x = 55)

Check a z-table to find the probability using the z-score you calculated.

- Statistics -
**Jane**, Sunday, February 10, 2013 at 6:35pm54.5-50/50 = 4.5/5 = 0.9 z= 0.1841

**Related Questions**

stat - if the probability of a newborn child being female is 0.5, find the ...

Statistics - Assume that male and female births are equally likely and that the ...

statistics - One student is selected at random from a student body. Suppose the ...

statistics - In this summer school class there are 28 male students and 15 ...

Math-Statistics - Assume that 60% of community college students are female. 1) ...

Binomial Probability - Before 1918, wolves were shown as 55% male, 45% female. ...

math - let the random variable x denote the number of girls in a five-child ...

statistics - Suppose that in a particular year the probability of a college ...

statistik - twenty percent of the employees of a large company are female.use ...

STATISTICS - Suppose that, for students who are enrolled in college algebra, 78 ...