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February 27, 2015

February 27, 2015

Posted by **apryl** on Wednesday, September 7, 2011 at 6:31pm.

(a) How many would you expect to be between 169 and 181 cm tall?

127 27

(b) How many would you expect to be taller than 170 cm?

232 32

- math -
**PsyDAG**, Thursday, September 8, 2011 at 1:09amI don't know how you got your answers, but you answer needs to be less than 40.

Z = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions for the Z scores. Multiply the proportions by 40.

a = proportions between the two Z scores and mean.

b = proportion in the larger portion.

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