Thursday

August 21, 2014

August 21, 2014

Posted by **Anna** on Thursday, May 24, 2012 at 5:49am.

were 10 and 8 respectively. In which subject did Charlotte perform better? Explain your

decision.

- Maths B -
**PsyDAG**, Thursday, May 24, 2012 at 11:01amZ = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions related to the Z scores. Change to percentiles and compare.

Percentile = precent ≤ a score

- Maths B -
**Anna**, Thursday, May 24, 2012 at 7:18pmi don't get what you mean. Can you please explain it to me again.

- Maths B -
**PsyDAG**, Friday, May 25, 2012 at 3:27pmThe Z score is the score in terms of standard deviations.

Percentile indicates proportion of scores that are equal to or below a particular score.

Consulting the previously named table should be able to give the percentile for each score for comparison.

If you still don't understand, you need to start a new post indicating the specific problem you are having.

**Related Questions**

Maths B - Charlotte received a score of 68 on both her English and Maths tests. ...

Maths B - Andrew got 68 for both English and Maths. The mean for english was 52 ...

statistics - a set of maths exame score mean is 70 and variance is 8. a set of ...

social science statistics - a professor was curious to whether the students in a...

graduate statistics - A nursing professor was curious as to whether the students...

Maths - data with mean of 32, standard deviation of 1.2, What is the 99th ...

maths - the probabilities of a boy passing English and Mathematics tests are x ...

math - Adam took five tests and received a grade for each of them. The first ...

statistics - Three students take equivalent stress tests. Which is the highest ...

statistics - Three students take equivalent stress tests. Which is the highest ...