# statistics

posted by .

in a distribution of scores with a mean of 1500 and a standard deviation of 250, what is the 95th percentile?

• statistics -

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion and its Z score.

Z = (score-mean)/SD

Insert the values to find the score.

## Similar Questions

1. ### Stastics

When we convert x-value to z- score and use Standard Normal distribution, which of the following statements is true?
2. ### Algebra

On a standardized test, the distribution of scores is normal, the mean of the scores is 75, and the standard deviation is 5.8. If a student scored 83, the student's score ranks 1. below the 75th percentile 2. above the 97th percentile …
3. ### college

1. Which of the following statements are correct?
4. ### Statistics

hi i need help calculating the standard error using the central limit theorem. *a population of scores contains exactly 5 scores : 2, 3, 6, 8, 11, there are 5x5=25 samples of the two scores (n=2)* i already calculated the standard …
5. ### statistics

The average (arithmetic mean) of a normal distribution of a school's test scores is 65, and standard deviation of the distribution is 6.5. A student scoring a 78 on the exam is in what percentile of the school?
6. ### Statistics

1. Which of the following statements are correct?
7. ### Analytical Skills

If your score on a statistics exam was 76 and the professor gave you the distribution for the exam score for your class, you could find your percentile to understand where you stand in comparison to your fellow students. Assume that …
8. ### Statistics

The distribution of IQ scores is a nonstandard normal distribution with a mean of 100 and a standard deviation of 15. What are the value of the mean and standard deviation after all IQ score have been standardized by converting them …
9. ### statistics

A college student takes a standardized test and scores a 163. If the mean is 155 and the standard deviation is 7, what is the studentâ€™s percentile rank?
10. ### Statistics

IF SAT scores have approximately a normal distribution with the mean being 550 and standard deviation of 90. How can I calculate the SAT scores of the 95th percentile?

More Similar Questions