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
DerKrebs [107]
3 years ago
9

Which table of ordered pairs represents a proportional relationship?

Mathematics
1 answer:
Dima020 [189]3 years ago
4 0

Answer:

I think its the second one but I might not be right.

Step-by-step explanation:

You might be interested in
Find inequality x^4-13x^2 36>0
NeX [460]
<span><span>x<<span>−<span><span>21.633308<span> or </span></span>x</span></span></span>>21.633308</span><span>
This is the answer ;D</span>
7 0
3 years ago
Find the coefficient of variation for each of the two sets of data, then compare the variation. Round results to one decimal pla
svp [43]

Here is  the correct computation of the question given.

Find the coefficient of variation for each of the two sets of data, then compare the variation. Round results to one decimal place. Listed below are the systolic blood pressures (in mm Hg) for a sample of men aged 20-29 and for a sample of men aged 60-69.

Men aged 20-29:      117      122     129      118     131      123

Men aged 60-69:      130     153      141      125    164     139

Group of answer choices

a)

Men aged 20-29: 4.8%

Men aged 60-69: 10.6%

There is substantially more variation in blood pressures of the men aged 60-69.

b)

Men aged 20-29: 4.4%

Men aged 60-69: 8.3%

There is substantially more variation in blood pressures of the men aged 60-69.

c)

Men aged 20-29: 4.6%

Men aged 60-69: 10.2 %

There is substantially more variation in blood pressures of the men aged 60-69.

d)

Men aged 20-29: 7.6%

Men aged 60-69: 4.7%

There is more variation in blood pressures of the men aged 20-29.

Answer:

(c)

Men aged 20-29: 4.6%

Men aged 60-69: 10.2 %

There is substantially more variation in blood pressures of the men aged 60-69.

Step-by-step explanation:

From the given question:

The coefficient of variation can be determined by the relation:

coefficient \ of  \ variation = \dfrac{standard \ deviation}{mean}*100

We will need to determine the coefficient of variation both men age 20 - 29 and men age 60 -69

To start with;

The coefficient of men age 20 -29

Let's first find the mean and standard deviation before we can do that ;

SO .

Mean = \dfrac{\sum \limits^{n}_{i-1}x_i}{n}

Mean = \frac{117+122+129+118+131+123}{6}

Mean = \dfrac{740}{6}

Mean = 123.33

Standard deviation  = \sqrt{\dfrac{\sum (x_i- \bar x)^2}{(n-1)} }

Standard deviation =\sqrt{\dfrac{(117-123.33)^2+(122-123.33)^2+...+(123-123.33)^2}{(6-1)} }

Standard deviation  = \sqrt{\dfrac{161.3334}{5}}

Standard deviation = \sqrt{32.2667}

Standard deviation = 5.68

The coefficient \ of  \ variation = \dfrac{standard \ deviation}{mean}*100

coefficient \ of  \ variation = \dfrac{5.68}{123.33}*100

Coefficient of variation = 4.6% for men age 20 -29

For men age 60-69 now;

Mean = \dfrac{\sum \limits^{n}_{i-1}x_i}{n}

Mean = \frac{   130 +    153    +  141  +    125 +   164  +   139}{6}

Mean = \dfrac{852}{6}

Mean = 142

Standard deviation  = \sqrt{\dfrac{\sum (x_i- \bar x)^2}{(n-1)} }

Standard deviation =\sqrt{\dfrac{(130-142)^2+(153-142)^2+...+(139-142)^2}{(6-1)} }

Standard deviation  = \sqrt{\dfrac{1048}{5}}

Standard deviation = \sqrt{209.6}

Standard deviation = 14.48

The coefficient \ of  \ variation = \dfrac{standard \ deviation}{mean}*100

coefficient \ of  \ variation = \dfrac{14.48}{142}*100

Coefficient of variation = 10.2% for men age 60 - 69

Thus; Option C is correct.

Men aged 20-29: 4.6%

Men aged 60-69: 10.2 %

There is substantially more variation in blood pressures of the men aged 60-69.

4 0
3 years ago
I need help with LINES!!!! ASAP!!!!!!
Mumz [18]

Answer:

∠ 2 = 104°

Step-by-step explanation:

Since the trees are parallel, then

∠ 2 and 76° are same- side interior angles and are supplementary, thus

∠ 2 + 76° = 180° ( subtract 76° from both sides )

∠ 2 = 104°

6 0
3 years ago
bonnie has just received an order for a square frame that has 102 tiles along each side.how many tikes will she need to make thi
Ray Of Light [21]
102 times 4 =408

i know this because a square has 4 sides and i just need to multiply 102 and 4

6 0
3 years ago
Read 2 more answers
I can't find the right answer
OlgaM077 [116]

Answer:

x10

Step-by-step explanation:

x^2 > 100\\\\\mathrm{For\:}u^n\:>\:a\\\mathrm{,\:if\:}n\:\mathrm{is\:even}\mathrm{\:then\:}u\:\:\sqrt[n]{a}\\\\x\sqrt{100}\\\\\sqrt{100}=10\\\\x10

7 0
3 years ago
Other questions:
  • What is 8 times the square root of 864
    13·2 answers
  • Can you help me with my math questions
    6·2 answers
  • Can anyone help me with these two questions
    13·1 answer
  • Carissa counts by 5s from 32 to 62. Which number does carissa count?
    14·1 answer
  • Find a formula for the sum of n terms. use the formula to find the limit as n → ∞. lim n→∞ n 3i n 2 n i = 1
    13·1 answer
  • Please help ASAP I don’t get this
    11·1 answer
  • No link just right answer
    9·2 answers
  • Which describes the correct way to convert minutes to hours?
    11·1 answer
  • Judith is making muffins. She needs 2 cups of flour for a recipe that makes 24
    14·2 answers
  • 76. 30 students at a sports event are
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!