Thursday

November 27, 2014

November 27, 2014

Posted by **Jesse** on Sunday, May 13, 2012 at 7:53pm.

Thank you for your help

- Statistics -
**MathMate**, Sunday, May 13, 2012 at 10:11pmThe .15% is the tail end of the probability distribution.

Probability distributions are such that the total area is 1.0 from Z=-∞ to Z=+∞.

For the normal distribution, Z=0 is at 0.5, which means that the probability of a variable falling above 0 is exactly that of falling below 0.

Here you're looking for the value of Z for which the probability of a variable falling above Z is 0.15, and below is 0.85. So look up the table (below) for Z such that the entries of the table is 0.85, which corresponds to a Z=1.04.

Also, check the little sketch in the following table:

http://www.math.unb.ca/~knight/utility/NormTble.htm

**Answer this Question**

**Related Questions**

statistics - Reading placement scores for a particular college are normally ...

Statistics - A study of reading ability in schoolchildren chose 60 fifth-grade ...

reading - she is having problem with comprehension and I do help her a lot but ...

Statistics - 1. Consider a population with µ=73.6 and 0 = 5.38 (A) Calculate the...

Statistics - Consider a population with µ=73.6 and 0 = 5.38 (A) Calculate the z-...

statistics - Consider a population with µ=93.3 and σ=5.27. (A) Calculate ...

statistics - students who learned English as well as another language ...

Math - I am having problems understanding how to solve problems like the ...

statistics - do students who learned English as well as another language ...

statistics - -A set of seven scores has a mean of 10. If one of the scores is ...