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
PilotLPTM [1.2K]
3 years ago
6

Please help me! Two quantities are related, as shown in the table:

Mathematics
1 answer:
Fynjy0 [20]3 years ago
7 0
I don't know where you got those answers, but the actual equation that represents those points is: y = -1/2x + 11. None of those listed above are correct.
You might be interested in
A student was asked to find a 90% confidence interval for the proportion of students who take notes using data from a random sam
Scorpion4ik [409]

Answer:

After use the formula we got the following result for the 90% confidence interval (0.13 <p<0.34)

And the conclusion for this case would be:

e. With 90% confidence, the proportion of all students who take notes is between 0.13 and 0.34.

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

Description in words of the parameter p

p represent the real population proportion of students who take notes

\hat p represent the estimated proportion of students who take notes

n is the sample size required  

z_{\alpha/2} represent the critical value for the margin of error  

The population proportion have the following distribution  

p \sim N(p,\sqrt{\frac{p(1-p)}{n}})

Numerical estimate for p

In order to estimate a proportion we use this formula:

\hat p =\frac{X}{n} where X represent the number of people with a characteristic and n the total sample size selected.

Confidence interval

The confidence interval for a proportion is given by this formula  

\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}  

For the 90% confidence interval the value of \alpha=1-0.90=0.1 and \alpha/2=0.05, with that value we can find the quantile required for the interval in the normal standard distribution.  

z_{\alpha/2}=1.64  

After use the formula we got the following result for the 90% confidence interval (0.13 <p<0.34)

And the conclusion for this case would be:

e. With 90% confidence, the proportion of all students who take notes is between 0.13 and 0.34.

6 0
3 years ago
#1. Convert the following expression into radical form.<br><br>x4/3​
miskamm [114]

Answer:

³√x^4

Step-by-step explanation:

8 0
3 years ago
X+y=20 3x-3y=30 Which values of x and y satisfy this system of equations?
puteri [66]

x +y = 20 ( rewrite as x = 20-y)

3x - 3y =30

3(20-y) - 3y = 30

60-3y - 3y = 30

60-6y = 30

-6y = -30

y = -30 / -6 = 5

x=20-5 = 15

x = 15, y = 5

4 0
4 years ago
Which two functions are inverses of each other? A. f(x) = x, g(x) = –x B. f(x) = 2x, g(x) = -1/2x C. f(x) = 4x, g(x) = 1/4x D. f
Archy [21]
B. f(x)=2x, g(x)= -1/2x. Hope this helps. :-)
3 0
3 years ago
Read 2 more answers
Work out the circumference of the circle when the radius is 6mm and give the answer in terms of pie.
s344n2d4d5 [400]

<em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em>

<em>Hey</em><em>!</em><em>!</em>

<em>Sol</em><em>ution</em><em>,</em>

<em>Radius</em><em>(</em><em>r</em><em>)</em><em>=</em><em> </em><em>6</em><em> </em><em>mm</em>

<em>Circumf</em><em>erence</em><em> </em><em>of</em><em> </em><em>circle</em><em>=</em><em>?</em>

<em>Now</em><em>,</em>

<em>Circumfe</em><em>rence</em><em> </em><em>of</em><em> </em><em>circle</em><em>=</em><em>2</em><em> </em><em>pi</em><em>e</em><em> </em><em>r</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em>2</em><em>*</em><em>pi</em><em>*</em><em>6</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em>1</em><em>2</em><em> </em><em>pie</em>

<em>So </em><em>the</em><em> </em><em>ans</em><em>wer</em><em> </em><em>is</em><em> </em><em>1</em><em>2</em><em> </em><em>pie.</em>

<em>Hope </em><em>it</em><em> </em><em>helps</em><em>.</em><em>.</em><em>.</em>

<em>Good</em><em> </em><em>luck</em><em> </em><em>on</em><em> </em><em>your</em><em> </em><em>assignment</em>

<em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em>

4 0
3 years ago
Other questions:
  • If the scale of a flag from the image to the actual were 1 inch = 63.75 ft, what is the scale factor? What is an equation that c
    13·1 answer
  • Look at the drawing of a triangle within a rectangle triangle in the rectangle have the same base and height is the area of a tr
    14·1 answer
  • A set of data collected to answer a statistical question has a distribution which can be described by its __________.
    7·2 answers
  • Write the percent as a decimal. <br><br> 110%
    8·2 answers
  • The circles at the right are congruent. Which conclusion can you draw?
    10·1 answer
  • Hey there, can you help me to solve this ?<br><br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B23%20%5Ctimes%2023%7D%20" id="T
    8·1 answer
  • Gloria rides a bike 8 miles in 40 minutes. Nanette rides a bike 5 miles in 30 minutes. Who bikes faster? Explain.
    5·2 answers
  • rest of the world 39 hours in 6 days if Kristen wants the same amount of hours each day how many hours did she work each day wri
    7·1 answer
  • Sandy made 6 pints of hot chocolate for her friends. If each of sandy's mugs holds 2/7 of a pint of liquid, how many friends wil
    8·1 answer
  • Plot the points (4, 0) and ( -1 - 2) on the coordinate plane.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!