- #1

karush

Gold Member

MHB

- 3,269

- 5

Given IQ scores are approximately normally distributed with a mean of 100 and standard deviation of 15,

the proportion of people with IQs above 130 is:

$ a.\ 95\% \quad b.\ 68\% \quad c.\ 5\% \quad d.\ 2.5\% \quad e.\ 12\%$

ok its been some moons since I looked at a standard deviation graph

so my choice would be by dice.

the proportion of people with IQs above 130 is:

$ a.\ 95\% \quad b.\ 68\% \quad c.\ 5\% \quad d.\ 2.5\% \quad e.\ 12\%$

ok its been some moons since I looked at a standard deviation graph

so my choice would be by dice.

Last edited: