Assume that adults have IQ scores that are normally distributed with a mean of 97.1 and a standard deviation of 18.8. Find the probability that a rand Next Question has an IQ greater than 134.4. (Hint: Draw a graph.)The probability that a randomly selected adult from this group has an IQ greater than 134.4 is ?.(Round to four decimal places as needed.)

GivenMean(μ)=97.1standard deviation(σ)=18.8

Answered: Assume that adults have IQ scores that…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Suppose that the speeds of cars travelling on California freeways are normally distributed with a mean of 57 miles/hour. The highway patrol's policy is to issue tickets for cars with speeds exceeding 80 miles/hour. The records show that exactly 2% of the speeds exceed this limit. Find the standard deviation of the speeds of cars travelling on California freeways. Carry your intermediate computations to at least four decimal places. Round your answer to at least one decimal place. ?
please a and b
Assume that adults have IQ scores that are normally distributed with a mean of 103.5 and a standard deviation of 25. Find the probability that a randomly selected adult has an IQ greater than 137.0. (Hint: Draw a graph.) The probability that a randomly selected adult from this group has an IQ greater than 137.0 is . (Round to four decimal places as needed.)
Assume that adults have IQ scores that are normally distributed with a mean of 100.6 and a standard deviation of 19.5. Find the probability that a randomly selected adult has an IQ greater than 138.2. (Hint: Draw a graph.) The probability that a randomly selected adult from this group has an IQ greater than 138.2 is (Round to four decimal places as needed.)
Assume that adults have IQ scores that are normally distributed with a mean of 96.6 and a standard deviation 19. Find the first quartile Q,, which is the IQ score separating the bottom 25% from the top 75%. (Hint: Draw a graph.) The first quartile is (Type an integer or decimal rounded to one decimal place as needed.)
The results of a certain medical test are normally distributed with a mean of 127 and a standard deviation of 12. (A reading above 146 is considered unhealthy.) Use the given table to find the percentage of people with readings above 133. Click the icon to view the table. EXIS The percentage of people with readings above 133 is. (Round the final answer to the nearest bundredth as needed. Round the z-score to the nearest tenth as needed.)
Answer the Ff.
Assume that adults have IQ scores that are normally distributed with a mean of 95.3 and a standard deviation of 16.4. Find the probability that a randomly selected adult has an IQ greater than 125.0. (Hint: Draw a graph.) The probability that a randomly selected adult from this group has an IQ greater than 125.0 is ☐ . (Round to four decimal places as needed.)
Assume that adults have IQ scores that are normally distributed with a mean of 98.8 and a standard deviation of 15.2. Find the probability that a randomly selected adult has an IQ greater than 122.2. (Hint: Draw a graph.) The probability that a randomly selected adult from this group has an IQ greater than 122.2 is (Round to four decimal places as needed.)
Assume that adults have IQ scores that are normally distributed with a mean of 103.6 and a standard deviation 22.7. Find the first quartile Q,, which is the IQ score separating the bottom 25% from the top 75%. (Hint: Draw a graph.) The first quartile is ?. (Type an integer or decimal rounded to one decimal place as needed.)
Suppose that the average reading speed of students completing a speed-reading course is 500 words per minute (wpm). If the standard deviation is 70 wpm, find the z score associated with each of the following reading speeds. (Round the answers to two decimal places.) 350 wpm 515 wpm 440 wpm 620 wpm
A final exam in Seaturtle Research Studies has a mean of 78 and a standard deviation of 3. If 36 students are randomly selected, find the probability that the mean of their test scores less than 79. P(x < 79) = P(z < (Enter your answer as a percent accurate to 1 decimal place, do not enter the "%" sign). Shade: ( Left of a value 9. Click and drag the arrows to adjust the values. -4 -3 -2 -1 2 3 4 -1.5

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS