Friday

March 27, 2015

March 27, 2015

Posted by **VICTORIA** on Friday, April 27, 2012 at 5:04pm.

A) find the percentage of adults that have an IQ between 94 and 116

B) find the percentage of adults IQ exceeding 120

C)Determine the 1st, 2nd, and 3rd quartiles for adults IQ

D) obtain the 95th percentile

- statistics -
**PsyDAG**, Saturday, April 28, 2012 at 8:24pmZ = (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.

Reverse the process for the last two problems.

first Quartile = 25 percentile or lowest 25%

Second quartile = mean in normal distribution.

3rd quartile = lowest 75% percentile

**Answer this Question**

**Related Questions**

statistics - Assume that adults have IQ score that are normally distributed with...

Statistics - assume that adults have IQ scores that are normally distributed ...

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

statistics - Assume the body temperatures of healthy adults are normally ...

Statistics - Assume the body temperatures of healthy adults are normally ...

Statistics - Assume the body temperature of healthy adults are normally ...

statistics, math, college - assume that adults have I.Q scores that are normally...

Statistics - Assume that adults have IQ scores that are normally distributed ...

statitics - Assume the body temperatures of healthy adults are normally ...

12th grade - 2. Assume the body temperatures of healthy adults are normally ...