Question

IQ scores (as measured by the Stanford-Binet intelligence test) are normally distributed with a mean of 100 and a standard deviation of 14. Find the approximate number of people in the United States (assuming a total population of 280,000,000) with an IQ higher than 121. (Round your answer to the nearest hundred thousand.)

Name: 1 iq scores as measured by the stanford binet intelligence test are normally distributed with a mean of 100 and a standard deviation of 14 find the approximate number of people in the united 11596
Uploaded: 2023-08-19T00:02:34-08:00
Duration: 1 min 39 s
Channel: Kari Hasz
Description: 1 iq scores as measured by the stanford binet intelligence test are normally distributed with a mean of 100 and a standard deviation of 14 find the approximate number of people in the united 11596

          IQ scores (as measured by the Stanford-Binet intelligence test) are normally distributed with a mean of 100 and a standard deviation of 14. Find the approximate number of people in the United States (assuming a total population of 280,000,000) with an IQ higher than 121. (Round your answer to the nearest hundred thousand.)

Added by Joshua D.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Kari Hasz

08/19/2023

Step 1

Z = (121 - 100) / 14 Z = 21 / 14 Z = 1.5 Show more…

Show all steps

Thanks for your feedback!

IQ scores (as measured by the Stanford-Binet intelligence test) are normally distributed with a mean of 100 and a standard deviation of 14. Find the approximate number of people in the United States (assuming a total population of 280,000,000) with an IQ higher than 121. (Round your answer to the nearest hundred thousand.)