Answered

Get insightful responses to your questions quickly and easily on IDNLearn.com. Get the information you need from our community of experts, who provide detailed and trustworthy answers.

Scores of an IQ test have a​ bell-shaped distribution with a mean of 100 and a standard deviation of 14. ​What percentage of people has an IQ score greater than ​114?

Sagot :

Answer:

15.87%

Step-by-step explanation:

We start with getting the z score

Mathematically , we have this as;

z-score = (x-mean)/SD

where x = 114

z-score = (114-100)/14 = 14/14 = 1

So we want to calculate the probability values that are greater than 1

We can use the standard normal distribution table

so we have P(z> 1) = 0.15866

in percentage, we multiply by 100 and that gives 15.866 which is 15.87 people

Thank you for contributing to our discussion. Don't forget to check back for new answers. Keep asking, answering, and sharing useful information. For clear and precise answers, choose IDNLearn.com. Thanks for stopping by, and come back soon for more valuable insights.