According to psychologists, IQs are normally distributed, with a mean of 100 and a standard deviation of 15 . a. What percenta

Question

otez555 [7]

3 years ago

12

According to psychologists, IQs are normally distributed, with a mean of 100 and a standard deviation of 15 . a. What percenta

ge of the population has IQs between 85 and 100 ?

Mathematics

1 answer:

Angelina_Jolie [31] · Answer 1 · 2022-08-25T15:15:49+03:00

Angelina_Jolie [31]3 years ago

3 0

Answer: 34%.

By definition of normal distribution, ≈68% of the data is within 1 standard deviation of the mean. Therefore 68% of IQs are between 85 and 115, and half of that is on the lower end, 85 to 100.

According to​ psychologists, IQs are normally​ distributed, with a mean of 100 and a standard deviation of 15 . a. What percenta

According to psychologists, IQs are normally distributed, with a mean of 100 and a standard deviation of 15 . a. What percenta