Question

(1 point) Scores on a certain intelligence test for children between ages 13 and 15 years...

(1 point) Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with ?=101μ=101 and ?=24σ=24.

(a) What proportion of children aged 13 to 15 years old have scores on this test above 83 ? (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 marks the highest 10 percent of the distribution.
Answer:

Homework Answers

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
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...
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=96μ=96 and σ=15σ=15. (a) What proportion of children aged 13 to 15 years old have scores on this test above 88.5 ? (NOTE: Please enter your answer in decimal form. For example, 45.23% should be entered as 0.4523.) Answer:   (b) Enter the score which best approximates the lowest 8 percent of the distribution. Round your answer to the nearest tenth. Answer:...
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 ?=101 and ?=24. (a) What proportion of children aged 13 to 15 years old have scores on this test above 91? (Reminder: proportions are between 0 and 1 - don't put in percentages!) (b) Enter the score which marks the lowest 30 percent of the distribution. (c) Enter the score which marks the highest 15 percent of the distribution.
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=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.)
An Illinois state program evaluator is tasked with studying the intelligence of soon graduating high school...
An Illinois state program evaluator is tasked with studying the intelligence of soon graduating high school students in a number of Chicago-area high schools. One of the specific questions that needs to be answered is, “How do the students of Collins High School, one of Chicago’s lowest-rated high schools in terms of academic achievement, fare compared to students of Lincoln Park High School, one of Chicago’s highest-rated high schools in terms of academic achievement?”. To conduct this study, the program...
1) The amount of time to complete a physical activity in a PE class is approximately...
1) The amount of time to complete a physical activity in a PE class is approximately normally normally distributed with a mean of 39.7 seconds and a standard deviation of 7.8 seconds. a) 80% of all students finish the activity in less than ______ seconds. 2) Heights of 10 year old children, regardless of sex, closely follow a normal distribution with mean 55 inches and standard deviation 6.4 inches. Round answers to 4 decimal places. a) 75% of all 10...
DIRECTIONS: This is an open book, take home examination. You may look up the answers and...
DIRECTIONS: This is an open book, take home examination. You may look up the answers and discuss them, if you wish. The Multiple Choice questions will be worth 1 point each and the essay questions will be worth 25 points each. This examination is over Chapters 6 through 9. MULTIPLE CHOICE: 1. During Piaget's concrete operational stage, children a. are more egocentric than they were during the preoperational period. b. often confuse appearances with reality. c. are unable to reverse...