Question

Assume that adults have IQ scores that are normally distributed, with a mean of 107 and...

Assume that adults have IQ scores that are normally distributed, with a mean of 107 and a standard deviation of 15. Find the probability that a randomly selected individual has an IQ between 75 and 117.

Homework Answers

Answer #1

Let X denote the IQ score of an adult

We are given :

Required probability = Probability that a randomly selected individual has an IQ between 75 and 117 = P(75 < X < 117)

We use Excel function "NORMSDIST()" as :

Hence,

Probability that a randomly selected individual has an IQ between 75 and 117 = 0.731

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Assume that adults have IQ scores that are normally distributed with a mean of 100 and...
Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation of 15. Find the probability that a randomly selected adult has an IQ between 84 and 116.
A) Assume that adults have IQ scores that are normally distributed with a mean of 100...
A) Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation of 15. Find the probability that a randomly selected adult has an IQ between 90 and 120. (Provide graphing calculator sequence) B) Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard of 15. Find P3D, which is the IQ score separating the bottom 30% from the top 70%. (Provide graphing calculator...
Assume that adults have IQ scores that are normally distributed with a mean of 200 and...
Assume that adults have IQ scores that are normally distributed with a mean of 200 and a standard deviation of 20. Find the probability that a randomly selected adult has an IQ between 150 and 175.
Assume that adults have IQ scores that are normally distributed with a mean of mu equals...
Assume that adults have IQ scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. Find the probability that a randomly selected adult has an IQ between 85 and 115. The probability that a randomly selected adult has an IQ between 85 and 115 is:
Assume that adults have IQ scores that are normally distributed with a mean of 102.9 and...
Assume that adults have IQ scores that are normally distributed with a mean of 102.9 and a standard deviation of 15.1 Find the probability that a randomly selected adult has an IQ greater than 119.8
Assume that adults have IQ scores that are normally distributed with a mean of 104.1 and...
Assume that adults have IQ scores that are normally distributed with a mean of 104.1 and a standard deviation of 23.6 Find the probability that a randomly selected adult has an IQ greater than 144.3
Assume that adults have IQ scores that are normally distributed with a mean of 100 and...
Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation of 15. For a randomly selected adult, find the probability. Round scores to nearest whole number. 1.) Prob. of IQ less than 85 2.)Prob. of IQ greater than 70 3.) Prob. of randomly selected adult having IQ between 90 and 110.
Assume that adults have IQ scores that are normally distributed with a mean of mu equals...
Assume that adults have IQ scores that are normally distributed with a mean of mu equals 105 and a standard deviation sigma equals 20. Find the probability that a randomly selected adult has an IQ between 91 and 119.
Assume that adults have IQ scores that are normally distributed with a mean of mu equals...
Assume that adults have IQ scores that are normally distributed with a mean of mu equals 105?=105 and a standard deviation sigma equals 20?=20. Find the probability that a randomly selected adult has an IQ between 92 and 118.
Assume that adults have IQ scores that are normally distributed with a mean of 103.3 and...
Assume that adults have IQ scores that are normally distributed with a mean of 103.3 and a standard deviation of 16.2. Find the probability that a randomly selected adult has an IQ greater than 127.4. ​(Hint: Draw a​ graph.) The probability that a randomly selected adult from this group has an IQ greater than 127.4 is
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT