anonymous
  • anonymous
Some psychologists believe that a "genius" should be defined as anyone having an IQ over 140. If IQ scores are normally distributed with a mean of 100 and a standard deviation of 17, and if the population of the world is 6,575,000,000, how many geniuses are there in the world today?
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
amistre64
  • amistre64
the bell curve is divided iinto whay ; 96% at the right ?
amistre64
  • amistre64
i got an a intyping....honest lol
amistre64
  • amistre64
http://www.easycalculation.com/statistics/standard-deviation.php might be useful

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

amistre64
  • amistre64
thats the reverse of what you wanted .... gotta learn to read :)
anonymous
  • anonymous
lol so this wont help me ? thanks anyway:)
anonymous
  • anonymous
We make the curve standard normal. \[(X-\mu)/(\sigma)\] (140-100)/17 that's a z score of 2.353. The probability of being that or higher can be looked up in a standard normal table. It is a probability of about .0094. Multiply this by the population of 6.575E9 to get the number of geniuses. I get 61,805,000 geniuses.

Looking for something else?

Not the answer you are looking for? Search for more explanations.