![z score table z score table](https://media.cheggcdn.com/media/f9a/f9a02b63-c24d-4bfb-bb92-b062f4c78594/phpll3Y9B.png)
This probability is given by the integral of this variable’s PDF over that range - that is, it is given by the area under the density function but above the horizontal axis and between the lowest and greatest values of the range. A PDF is used to specify the probability of the random variable falling within a particular range of values, as opposed to taking on any one value.
![z score table z score table](https://useruploads.socratic.org/Z8400zUxSXOtyYYA9QKZ_standard_normal_table.jpg)
To be able to understand where the values come from, it is important to know about the probability density function (PDF). This part of the post is very similar to the 68–95–99.7 rule article, but adapted for creating a z table.
Z score table how to#
Please do not worry if you do not understand this section, it is not important if you just want to know how to use a z-score table. This section will answer where the values in the z table come from by going through the process of creating a z-score table. It is important to keep in mind that if you have a negative z-score, you can simply use a table that contains negative z-scores.
![z score table z score table](https://i.stack.imgur.com/kRCoe.png)
Roughly 84.13% of people scored worse than him on the SAT. To use the z-score table, start on the left side of the table go down to 1.0 and now at the top of the table, go to 0.00 (this corresponds to the value of 1.0 +. Roughly 89.44% of people scored worse than her on the ACT. At the top of the table, go to 0.05 (this corresponds to the value of 1.2 +.
![z score table z score table](https://giaintendi.com/tjt/FRdASYfpczg2XzIH3YZYCQHaLG.jpg)
A z-score simply tells you how many standard deviations away an individual data value falls from the mean. To use the z-score table, start on the left side of the table go down to 1.2. A z-table is a table that tells you what percentage of values fall below a certain z-score in a standard normal distribution. Note that table entries for z is the area under the standard normal curve to the left of z.