Assume we want to determine the percentile for a particular
Assume we want to determine the percentile for a particular value of a normally distributed variable. If we know the mean and standard deviation of the variable, what will be our first step?
Calculate the interquartile range
Convert the value to a z-score
Subtract 1 from the sample size
Calculate the binomial distribution
| 1. | Calculate the interquartile range | |
| 2. | Convert the value to a z-score | |
| 3. | Subtract 1 from the sample size | |
| 4. | Calculate the binomial distribution | 
Solution
The next step is:
OPTION 2: CONVERT THE VALUE TO A Z SCORE. [ANSWER]
Then we use a table to get the percentile.

