![ImmortalEnigmaYT](/avatars/3787.jpg)
ImmortalEnigmaYT
26.02.2020 •
Mathematics
Admission to a certain university is determined by an entry exam. The scores of this test are Normally distributed with a mean of 400 and a standard deviation of 60. Only students who score in the top 30% will be offered admission. Amy scores 425 on the test. Choose the most accurate statement? A) The top 30% is defined with a score less than or equal to 431.4 so she will be admitted. B) The top 30% of all students have scores greater than or equal to 520 so she will not be admitted. C) The top 30% of all students have scores greater than or equal to 460 so she will not be admitted. D) The top 30% is defined with a score greater than or equal to 431.4 so she will not be admitted.
Solved
Show answers
More tips
- C Computers and Internet What to Do If Your ICQ Gets Hacked?...
- L Leisure and Entertainment How to Land on the Moon: Your Comprehensive Guide...
- T Travel and tourism How to Use a Compass: A Beginner s Guide...
- C Computers and Internet Porn Banner: What It Is and How to Get Rid Of It?...
- C Computers and Internet Отправляем смс через интернет: легко и просто...
- L Leisure and Entertainment The Best Film of 2010: A Look Back at the Academy Awards...
- H Health and Medicine Simple and Effective: How to Get Rid of Cracked Heels...
- O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
- L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
Answers on questions: Mathematics
- M Mathematics Use the given line of best fit to approximate the rate of change relative to the scatter plot below. A. 3.25 hats per game B. 3.75 hats per game C. 4 hats per game D....
- M Mathematics I would like help With solving Inequalities Solve this and First answer will be brainliest (3x+2y) 20=22x-2=5...
- M Mathematics Solve for a 6a-15=72...
- M Mathematics This is confusing and i’m confused...
- M Mathematics Benson boat company makes inexpensive aluminum fishing boats. production is seasonal with co...
- M Mathematics Write the equation of the line that passes through the point (- 6, 1) and has a slope of 1/2 in slope-intercept form...
- M Mathematics 15 less than half a number is -3. What is the unknown number...
- M Mathematics Noura has 6 juice orange containers . Each container is 1over3full. Noura says that she has a total of 4 container. Is she correct? Explain...
- M Mathematics A standard deck of 52 cards has 13 ranks (ace, 2, 3, 4, 5, 6, 7, 8, 9, 10, jack, queen, king) and 4 suits (spades, hearts, diamonds, and clubs), such that there is exactly...
- M Mathematics |18| what is the absolute value?...
Ответ:
The top 30% is defined with a score greater than or equal to 431.44 so she will not be admitted (D)
Step-by-step explanation:
Mean m = 400
Standard deviation S = 60
Firstly, we have to determine the cut off mark,
Since Only students who score in the top 30% are accepted, the cut off mark can be determined from 70% of the mark.
P(cut off mark = X) = Z[( X -m)/S) <x]
=¢(X-400/60) = 0.7
From Normal distribution table,
X-400/60 = 0.524
X = 431.44
Therefore, the cut off mark is 431.44
Since Amy scores 425 on the test.
Therefore, The top 30% is defined with a score greater than or equal to 431.44 so she will not be admitted (D)
Ответ: