Friday

December 19, 2014

December 19, 2014

Posted by **Jennifer** on Saturday, November 12, 2011 at 9:34pm.

I. Find the standard score (z) for a data value = 19.

II. Find the probability of a data value < 19.

III. Find the probability of a data value > 19.

- statistics help needed -
**drwls**, Sunday, November 13, 2011 at 4:07amThe z-score is (19-16)/27 = +1/9 = 0.111

P(z<0.111) = 0.544

P(z>0.111) = 0.456

There are table and online computational aids to give you the P(z) values for a normal distribution. The number 50 is not needed.

There many be a more accurate way to do this using the probabilities of each integer data value, including 19.

**Answer this Question**

**Related Questions**

Help plz!! Math.... - A set of 50 data values has a mean of 15 and a variance of...

Can someone help me please? - A set of 50 data values has a mean of 15 and a ...

Math-confused...plz help - I. Use Chebyshev’s theorem to find what percent of ...

statistics - A set of 50 data values has a mean of 15 and a variance of 36. Find...

Stats - A set of 50 data values has a mean of 15 and a variance of 36. Find the ...

Statistics - A set of 50 data values has a mean of 15 and a variance of 25. Find...

Stats - A set of 50 data values has a mean of 15 and a variance of 25. Find the ...

Statistics - The table below shows the LOS for a sample of 11 discharged ...

math - Using the data in the table, calculate the mean, range, variance, and ...

math - Using the data in the table, calculate the mean, range, variance, and ...