Question

The scores on the Wechsler Adult Intelligence Scale are approximately Normal with μ = 100 and...

The scores on the Wechsler Adult Intelligence Scale are approximately Normal with μ = 100 and σ = 15. The proportion of adults with scores between 85 and 130 is closest to

Group of answer choices

0.819.

0.333.

0.684.

0.997.

0.590.

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The scores on the Wechsler Adult Intelligence Scale are approximately Normal with mean= 100 and standard...
The scores on the Wechsler Adult Intelligence Scale are approximately Normal with mean= 100 and standard deviation=15. The shortest interval that covers 90% of WISC scores is closest to... (80, 129) (82, 118) (75, 125) (73, 119) (79, 121)
The Wechsler Adult Intelligence Scale (WAIS) is a common IQ test for adults. The distribution of...
The Wechsler Adult Intelligence Scale (WAIS) is a common IQ test for adults. The distribution of WAIS scores for persons over 16 years of age is approximately normal with mean 100 and standard deviation 15. Use the 68–95–99.7 rule to answer these questions. (a) What is the probability that a randomly chosen individual has a WAIS score of 115 or higher? (b) In what range do the scores of the middle 95% of the adult population lie?
Scores on the Wechsler Adult Intelligence Scale(a standard IQ test) for the 20 to 34 age...
Scores on the Wechsler Adult Intelligence Scale(a standard IQ test) for the 20 to 34 age group are approximately bell shaped symmetrical with a mean of 110 and standard deviation of 25. Use the empirical rule to answer the following questions. a. the scores of the middle 68% of all people lie between what two values? b. the scores of the middle 95% of all people lie between what two values? c. the scores of the middle 99.7% of all...
The scores of a certain population on the Wechsler Intelligence Scale for Children (WISC) are thought...
The scores of a certain population on the Wechsler Intelligence Scale for Children (WISC) are thought to be Normally distributed with mean μ and standard deviation σ = 10. A simple random sample of 25 children from this population is taken and each is given the WISC. The mean of the 25 scores is = 104.32. Suppose a histogram of the 25 WISC scores is the following. Based on this histogram, we would conclude that a 95% confidence interval of...
Scores on a certain intelligence test for children between ages 13 and 15 years are approximately...
Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with μ=96μ=96 and σ=18. (a) What proportion of children aged 13 to 15 years old have scores on this test above 86 ? (NOTE: Please enter your answer in decimal form. For example, 45.23% should be entered as 0.4523.)
1.Scores on a certain intelligence test for children between ages 13 and 15 years are approximately...
1.Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with μ=106 and σ=18 (a) What proportion of children aged 13 to 15 years old have scores on this test above 96? 0.710743 (b) Enter the score which marks the lowest 20 percent of the distribution. 90 85 help with part c (c) Enter the score which marks the highest 15 percent of the distribution.
Scores on a certain intelligence test for children between ages 13 and 15 years are approximately...
Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with μ=106 μ=106 and σ=24 σ=24 . (a) What proportion of children aged 13 to 15 years old have scores on this test above 96 ? (NOTE: Please enter your answer in decimal form. For example, 45.23% should be entered as 0.4523.) Answer: (b) Enter the score which marks the lowest 25 percent of the distribution. Answer: (c) Enter the score which...
Scores on a certain intelligence test for children between ages 13 and 15 years are approximately...
Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with μ=101 and σ=21. (a) What proportion of children aged 13 to 15 years old have scores on this test above 87 ? (NOTE: Please enter your answer in decimal form. For example, 45.23% should be entered as 0.4523.) Answer: 0.7475 (b) Enter the score which marks the lowest 30 percent of the distribution. Answer: 0.0004 (c) Enter the score which marks...
Scores on a certain intelligence test for children between ages 13 and 15 years are approximately...
Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with μ=111 and σ=21. (a) What proportion of children aged 13 to 15 years old have scores on this test above 97 ? (NOTE: Please enter your answer in decimal form. For example, 45.23% should be entered as 0.4523.) (b) Enter the score which marks the lowest 30 percent of the distribution. (c) Enter the score which marks the highest 15 percent...
In a normal distribution, μ = 1400 and σ = 90. Approximately, what percentage of scores...
In a normal distribution, μ = 1400 and σ = 90. Approximately, what percentage of scores lie between 1310 and 1445? In a population of normally distributed scores, μ = 70 and σ = 24. Approximately what percentage of random samples of 36 scores would have means with a value in the range 64 to 76?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT