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
Zigmanuir [339]
1 year ago
10

The following stem-and-leaf plot represents the test scores for

Mathematics
1 answer:
rewona [7]1 year ago
7 0

Considering the given stem-and-leaf plot, the quartiles are given as follows:

  • The first quartile is of 67.5.
  • The second quartile, which is the median, is of 84.5.
  • The third quartile is of 91.5.

<h3>What are the median and the quartiles of a data-set?</h3>

  • The median of the data-set separates the bottom half from the upper half, that is, it is the 50th percentile.
  • The first quartile is the median of the first half of the data-set.
  • The third quartile is the median of the second half of the data-set.

There is an even number of elements(26), hence the median is the mean of the 13th and 14th elements, which are 83 and 86, hence:

Me = (83 + 86)/2 = 84.5.

The first half has 12 elements, hence the first quartile is the mean of the 6th and 7th elements, which are 67 and 68, hence:

Q1 = (67 + 68)/2 = 67.5.

The third half also has 12 elements, starting at the second 86, hence the third quartile is the mean of the 6th and 7th elements of this half, hence:

Q3 = (91 + 92)/2 = 91.5.

More can be learned about the quartiles of a data-set at brainly.com/question/28017610

#SPJ1

You might be interested in
Solve. 8x² + 5 = 35 Round to the nearest hundredth. Enter your answers in the boxes. The solutions are approximately and .
lora16 [44]

Answer:

x=1.94

x = - 1.94

Step-by-step explanation:

8x² + 5 = 35

Subtract 5 from each side

8x² + 5-5 = 35-5

8x²  = 30

Divide each side by 8

8x² /8 = 30/8

x² = 15/4

Take the square root of each side

sqrt( x²) = ±sqrt(15/4)

x = ±sqrt(15/4)

x=1.93649

x = - 1.93649

To the nearest hundredth

x=1.94

x = - 1.94

4 0
2 years ago
Read 2 more answers
How is the graph of y= 1/3x related to its parent function y=1/x
V125BC [204]

B it is horizontally stretched by a factor of of 3 and reflected over the y

7 0
2 years ago
Read 2 more answers
Help me please?!?!? Giving brainly!
jok3333 [9.3K]

21, 19, 25, 23

Step-by-step explanation:

I hope this helps!

7 0
3 years ago
Read 2 more answers
Dave is making cupcakes. He has 2 3/4 cups of batter. Dave figures that if he uses 1/4 cup of batter for each cupcake, he will b
marissa [1.9K]

if he uses 1/4 cup of batter he will only have 11 cupcakes when he is done.  I have to disagree because he will be missing it by 1 cupcake.

8 0
3 years ago
Read 2 more answers
If m&lt;3 = 105 degrees, what is the measurement of &lt;2?
LiRa [457]

Answer:

Picture would help but....

Step-by-step explanation:

if its a vertical angle the measurement would be 105 degrees. If its a linear angle then it would be 75 degrees. If its neither look up alternate interior and exterior angles. :)

Please follow me!!! Hope this helps!!! Have a wonderful day!!!!

7 0
3 years ago
Other questions:
  • F(x) = 10x - 5<br><br> What is the value of f ^ -1 (35)?<br><br> A. 345<br> B.4<br> C. 30
    7·1 answer
  • Factor out the coefficient of the variable 5/6s+4/6
    10·1 answer
  • What time 30equals 200
    14·2 answers
  • BRAINLIEST + 100 PTS IF YOU ANSWER THIS QUESTION
    11·2 answers
  • Find the distance between the two points in simplest radical form.<br> (-9,3) and (-3,-5)
    5·1 answer
  • Tatiana wrote the steps that are commonly used to solve a system of equations with two variables. Which steps are correct? Check
    13·2 answers
  • A) Mr. Ghale bought a secondhand scooter for R$ 1,40,000. He spent Rs 7,500 to
    15·1 answer
  • What is the end behavior of f(x)?
    7·1 answer
  • Please answer fully/////////////
    9·2 answers
  • What is the volume whose 16 whole 2/3 %is 0.75 litre
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!