Wednesday

January 28, 2015

January 28, 2015

Posted by **koo** on Sunday, November 14, 2010 at 4:06am.

Q1a).What proportion of students had a higher score than alice?

Qb)Find the score exceeded by 2.5% of the students.

- statistics probability -
**PsyDAG**, Sunday, November 14, 2010 at 9:42amZ = (score-mean)/SD

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

- statistics probability -
**Ray**, Friday, December 9, 2011 at 9:02pmThe scores on a test are normally distributed with a mean of 140 and a standard deviation of 28, what is the score that is one standard deviation above the mean?

**Answer this Question**

**Related Questions**

statistics - Ram earned a score of 940 on a national achievement test. The mean ...

statistics - the admissions policy at a certain university requires that ...

statistics - the admissions policy at a certain university requires that ...

maths - Suppose scores on an IQ test are normally distributed.If the test has ...

Math - Suppose scores on an IQ test are normally distributed. If the test has a...

Math - Suppose scores on an IQ test are normally distributed. If the test has a ...

statistics - The Intelligence Quotient (IQ) test scores are normally distributed...

statistics - 2. A test measuring basic math skills in adults is normally ...

Statistics - IQ test scores are normally distributed with a mean of 100 and a ...

statistics! - 1) Entry to a certain University is determined by a national test...