1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Airida [17]
3 years ago
7

The Graduate Management Admission Test (GMAT) is a standardized exam used by many universities as part of the assessment for adm

ission to graduate study in business. The average GMAT score is 547 (Magoosh website, January 5, 2015). Assume that GMAT scores are bell-shaped with a standard deviation of 100. Make sure to use the empirical rule to answer these questions. a. What percentage of GMAT scores are 647 or higher? %
Mathematics
1 answer:
IgorC [24]3 years ago
3 0

Answer:

16.7% of GMAT scores are 647 or higher

Step-by-step explanation:

The Empirical Rule states that 68% of the values are within 1 standard deviation of the mean(34% above, 34% below). It also considers that 50% of the values are above the mean and 50% are below the mean.

In this problem, we have that the mean \mu is 547 and that the standard deviation \sigma is 100.

a. What percentage of GMAT scores are 647 or higher?

647 is 1 standard deviation above the mean.

So, 50% of the values are below the mean. Those scores are lower than 647.

Also, there is the 34% of the values that are above the mean and are lower than 647.

So, there is a 50% + 34% = 84% percentage of GMAT scores that are 647 or lower.

The sum of the probabilities must be 100

So, the percentage of GMAT scores that are 647 or higher is 100% - 84% = 16%.

You might be interested in
Sally painted a picture that has an area of 480 square inches. The length of the painting is 1 1/5 as long as it is wide. What a
marishachu [46]
So Length * Width = 480 in. sq.
L=1 1/5 or 1.2W
substitute the L for 1.2W
1.2W*W=480 in sq
divide both sides by 1.2
w*w= 400
W²=400
square root of both sides
Width = 20 inches
Length= (1.2width) or (20*1.2)
Length=24 inches
6 0
3 years ago
Solve for n: 2n + 3 + 3n = n + 11
Arte-miy333 [17]
N is equal to 2 in the equasion

4 0
3 years ago
Read 2 more answers
Write a real-world problem that can be represented by a rule and a table using division
LuckyWell [14K]
A company makes different size square containers. How can you find the length of each side if you know the perimeter of each of the containers? Represent your answer in a table, and right and equation that shows the rule used. You would write the equation x/4=y. I would create an input/output table with the labels x and y. I would then write various lengths for the perimeters and use the rule of dividing by 4 to find the y values.
4 0
3 years ago
NEED HELP ASAP. please do not answer if you won’t help. If three resistors with resistances R1,R2,R3, are connected in parallel
ANEK [815]
1/(1/R1 + 1/R2 + 1/R3)
= 1/ (R2R3 + R1R3 + R1R2)/R1R2R3
= R1R2R3/ (R2R3 + R1R3 + R1R2)
3 0
3 years ago
Help Now Please!!!<br> Find the area of the sphere
Makovka662 [10]
3, 217
Sorry if it’s wrong
Hope this helped *smiles*
3 0
3 years ago
Other questions:
  • I need help and it is y intercept and x intercept
    5·1 answer
  • Find volume of cylinder. circumference is 9 and height is 15
    12·1 answer
  • Answeerrrrr!!!!!!!!!!!!!!!!!!!
    5·1 answer
  • Which is greater than 4.026?<br><br> A. 4.020<br><br> B. 4.030<br><br> C. 4.021<br><br> D. 4.006
    13·2 answers
  • 3x + 2x = -15 awnser
    11·1 answer
  • What’s the answer i need a little help
    11·1 answer
  • MEDALS REWARDED!. . Find the exact value of (cos-1) square root of two divided by two.
    7·1 answer
  • 100 point and brainliest! Geometry help!
    9·1 answer
  • PLSSS HELP IF YOU TURLY KNOW THISS
    6·2 answers
  • 6x+7=-5 i got it wrong
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!