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]
2 years ago
10

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

Mathematics
1 answer:
rewona [7]2 years 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
This month, 1,500 new members joined a particular health club.the club's goal for thos month was 2,000 new members.What percenta
Sergeeva-Olga [200]
I believe the answer would be 75% of the clubs goal was achieved. I hope this helps!!
4 0
4 years ago
Could you help me answer this for a friend ​
mars1129 [50]

Answer:

c

Step-by-step explanation:

hope this helps

8 0
3 years ago
Read 2 more answers
9. On a game show, there are 16 questions: 8 easy, 5 medium-hard, and 3 hard. If contestants are given questions
just olya [345]

Answer:

\frac{7}{30}\approx0.23

Step-by-step explanation:

Given:

Number of questions (N) = 16

Number of easy questions (E) = 8

Number of medium-hard questions (M) = 5

Number of hard questions (H) = 3

Now, the probability of getting the first question as easy question is given as:

P(E1)=\frac{\textrm{Number of easy questions}}{\textrm{Total questions}}\\\\P(E1)=\frac{E}{N}=\frac{8}{16}=0.5

Now, probability of getting the second question as easy question is given as:

P(E2)=\frac{\textrm{Number of easy questions left}}{\textrm{Total questions left}}\\\\P(E2)=\frac{E-1}{N-1}=\frac{7}{15}

Now, probability that the first two contestants will get easy questions is given by the product of P(E1)\ and\ P(E2). So,

P(2\ easy\ questions)=P(E1)\times P(E2)\\\\P(2\ easy\ questions)=\frac{1}{2}\times \frac{7}{15}\\\\P(2\ easy\ questions)=\frac{7}{30}\approx 0.23

Therefore, the probability that the first two contestants will get easy questions is \frac{7}{30}\approx0.23

7 0
3 years ago
Which is greater thirty six and nine thousandths or four tens
malfutka [58]

Answer:

four tens

Step-by-step explanation:

four tens is greater because:

four tens = 40

thirty six and nine thousandths = 36.009

36.009 < 40

6 0
4 years ago
You and your friend are standing back-to-back. Your friend runs 16 feet forward and then 12 feet right. At the same time, you ru
Llana [10]
I show an example in the picture below. If you know how to solve with Pythagorean theorem this problem should be fairly easy. All you have to do is make 2 triangles and solve for C. Once you solve for C for both triangles you should get 20 for one answer and 15 for the other answer. Then all you do is just add them together so your answer should be 35 feet.

5 0
4 years ago
Other questions:
  • For math we have accelerated math so i need what is 375,200 divided by 5,000
    14·1 answer
  • What conclusion could be derived by comparing the central tendencies of the two data sets?
    10·1 answer
  • How many pairs of whole numbers have a sum of 110
    13·2 answers
  • Do you guys know the answer for 3 and 4
    6·2 answers
  • Expressed as a decimal what is the value of √3x+2 when x=4 round your answer to the nearest hundredth
    10·1 answer
  • Opposite value of integer <br>6​
    10·2 answers
  • 13 points CAN SOMEONE EXPLAIN ??.Write a mathematical sentence that expresses the information given below. Use s as your variabl
    13·1 answer
  • List two common factors of 36 and 48.
    15·2 answers
  • If the mass of an object is 50Kg and the acceleration is 2 m/s what is the force?
    5·1 answer
  • If these two shapes are similar, what is the measure of the missing length n?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!