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
leonid [27]
3 years ago
6

For a large data set of a average student grades, the third quartile Q3 is found 78.5 . What does the mean when we say that 78.5

is the third quartile?
Mathematics
1 answer:
xz_007 [3.2K]3 years ago
3 0

Step-by-step explanation:              

We are told that for a large data set of a average student grades, the third quartile Q3 is found 78.5.

Since we know that third quartile represents the number such that 75% of the data is less than this number. Third quartile is the middle value between median and the highest value of a data set. Third quartile is also known as upper quartile. Third quartile splits lower 75% data from highest 25% of data.

Therefore, third quartile represents that 75% of student grades are less than 78.5 and 25% of students grades are greater than 78.5.


You might be interested in
Find the equation of the line with a slope of 2/5 and containing the point (10,6).
Kipish [7]

Use the poin-slope form of the equation of a line:-


y - y1 = m(x - x1) (where m = slope and the point is (x1, y1))


Plugging in the given values:-


y - 6 = 2/5(x - 10)


multiplying through by 5:-


5y - 30 = 2(x - 10)

5y - 30 = 2x - 20

5y = 2x + 10


In standard form the equation is


2x - 5y = -10 (answer)



4 0
3 years ago
⦁ Find the distance between the two numbers
Temka [501]
1. 12+19=31
2. -14
3.0
8 0
3 years ago
Read 2 more answers
What property would justify the following statement? If a = b and b = c, then a = c. Addition Property Reflexive Property Subtra
romanna [79]

Answer:

It would be the transitive property! If you look up "If a = b, and b = c, then a = c" you'd see the transitive property. I hope this helps!

6 0
3 years ago
Find the sale pice is the original price is $82 and discount is 10%
Tpy6a [65]
First you should find the discount so you can say: 
10/100 = ?/82 
so ? is your discount and ? is equal to:
? = 82*10/100 = 8.2 
so your discount is $8.2 and your sale price will be:
$82 - $8.2 = $73.8 :)))
I hope this is helpful 
have a nice day 
7 0
3 years ago
I don't know how to solve it.
Nataly [62]

Step-by-step explanation:

Take the first derivative

\frac{d}{dx} ( {x}^{3}  - 3x)

3 {x}^{2}  - 3

Set the derivative equal to 0.

3 {x}^{2}  - 3 = 0

3 {x}^{2}  = 3

{x}^{2}  = 1

x = 1

or

x =  - 1

For any number less than -1, the derivative function will have a Positve number thus a Positve slope for f(x).

For any number, between -1 and 1, the derivative slope will have a negative , thus a negative slope.

Since we are going to Positve to negative slope, we have a local max at x=-1

Plug in -1 for x into the original function

( - 1) {}^{3}  - 3(  - 1) = 2

So the local max is 2 and occurs at x=-1,

For any number greater than 1, we have a Positve number for the derivative function we have a Positve slope.

Since we are going to decreasing to increasing, we have minimum at x=1,

Plug in 1 for x into original function

{1}^{3}   - 3(1)

1 - 3 =  - 2

So the local min occurs at -2, at x=1

8 0
2 years ago
Other questions:
  • How do you solve 5-X=-6-3X/2
    5·1 answer
  • the cost of a plane ticket from pheonix to dallas cost $120 last week. This week, the same ticket will cost $165. What is the pe
    5·1 answer
  • According to www.whitehouse.gov, the government had about $2.1 trillion in receipts and $2.8 trillion in outlays (expenses) for
    5·1 answer
  • What is the sum (-19X10) + 7
    8·1 answer
  • Gavin needs 7/8 gallons of paint to finish painting his deck. He has 0.06 gallon of paint. Does he have enough. Why or why not?
    14·2 answers
  • Marley used 7 cups of water to make 4 loaves of French bread. What equation can be used to model the total cups of water needed
    7·1 answer
  • Which polygon has one set of parallel sides and at least one right angle? On a coordinate plane, a polygon has 1 set of parallel
    5·1 answer
  • What is the equation of the line that passes through (–5, 0) and (4, 3)?
    8·1 answer
  • A rabbit population of 500 was introduced in a certain county of Eagleville. Biologists observe that the population increases 25
    9·2 answers
  • risa loaned Abi $50 for a month. She charged 5% weekly simple interest for the month. How much did Abi have to pay Risa?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!