Correct answer only !

the number 0.1271 represents the area under the standard normal curve below a particular z-score.

what is the z-score?

enter your answer, as a decimal to the nearest hundredth, in the box.

0.32

Step-by-step explanation:

Look at the z-table (below) to find 0.1271.  

Notice that the value is not on the table but is between 0.1255 and 0.1293 which are located on the z-table at 0.32 and 0.33.

We could estimate the z-score to be 0.325, however the instructions state to provide the value to the nearest hundredth. The given value is closer to 0.1255 so use 0.32 as the z-score.

NOTE: It is possible that the question was supposed to be 0.1217 (the last two digits reversed).  If that is the case, then the z-score is on the table at 0.31.

make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

you can download it here

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11 -1> 1 -1+ a

-12 > a