Data collected on the discharge of the Colorado River and the speed are given in the table:


Discharge (ft3) Speed
1.3 2.3
2.2 0.99
5.8 3.5
11 5
12 16
14 22
16 27
21 14
49 33
51 35


What is the value of the correlation coefficient and its interpretation?
0.76; There is a strong, positive association between discharge and speed.
0.87; There is a strong, positive association between discharge and speed.
−0.76; There is a strong, negative association between discharge and speed.
−0.87; There is a strong, negative association between discharge and speed.

Answers

Answer 1

Answer:

The value of the correlation coefficient is 0.87, which means there is a strong, positive association between discharge and speed. A positive correlation means that as one variable increases, the other variable also increases. In this case, as the discharge of the Colorado River increases, the speed of the river also increases. The strength of the association is indicated by the magnitude of the correlation coefficient, which ranges from -1 to 1. A value of 0.87 is considered a strong positive correlation, indicating that there is a strong relationship between the two variables.


Related Questions

please help will give brainliest!

Answers

Answer:

1. x = 14

2. c = 12

3. d = 4

4. w = 8

5. z = 54

6. d = 20

7. n = 26.4

8. k = 15

Step-by-step explanation:

What value of x makes the equation 3(x−6)−8x=−2+5(2x+1) true?

Answers

Answer:

[tex]3(x - 6) - 8x = - 2 + 5(2x + 1) \\ 3x - 18 - 8x + 2 - 10x - 5 = 0 \\ = > - 15x - 21 = 0 = > - 15x = 21 = > x = - \frac{7}{5} [/tex]

Please help thank you:)!

Answers

Answer:A

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

8/50 = 4/25

give the sinplest fraction answer

5. 14,5.13) 1. Amelia has 16 ounces of perfume to divide equally among 3 bottles. How many ounces of perfume will she pour into each bottle?​

Answers

Answer:

-16/3 = -5.3333333333

Step-by-step explanation:

Help !
Exponential Functions and Equations

Answers

Answer:

by now you should have the answer right?

Step-by-step explanation:

how do u calculate the area of a circle

Answers

The area of a circle is pi times the radius squared (A = π r²).

find the value of x in each figure

PLEASE DONT GIVE ME A LINK

Answers

Answer:

x = 24

Step-by-step explanation:

3X +5 +2x-4 +2x +11 = 180

7x +12 = 180

7x = 180 - 12

7x = 168

7x/7 = 168/7

x =24

Expand. Put the boxes in order to show the correct expansion.
Response 4 should be + or -
loga z5y3 =
:: log
:: logi
:: logs
:: logs
:: 5
:: 3
:: 4
:: y3

Answers

Answer:

Box-4 → (+)

Step-by-step explanation:

To find the value in the 4th box, we will expand the given logarithmic expression.

log₄x⁵y³ = log₄x⁵ + log₄y³

             = 5log₄x + 3log₄y

Therefore, each box will have the values as,

Box-1 → 5

Box-2 → log₄

Box-3 → x

Box-4 → (+)

Box-5 → 3

Box-6 → log₄

Box-7 → y

There is the (+) sign in Box-4.

giving out brainliest answer !!!!! help me out ASAP !!!

Answers

Answer:

0.7880

Step-by-step explanation:

0.7883

Hope it helps!

someone please anwser at this point im sad and listening to nirvana​

Answers

Answer:

6) 9 3/5

7) 1/50

8) 28/45

Step-by-step explanation:

6) 8÷5/6=8x6/5=48/5=9 3/5

7) 1/5÷10=1/50

8) 7/5÷9/4=7/5x4/9=28/45

A student researcher compares the ages of cars owned by students and cars owned by faculty at a local state college. A sample of 138 cars owned by students had an average age of 5.13 years. A sample of 111 cars owned by faculty had an average age of 7.75 years. Assume that the population standard deviation for cars owned by students is 3.45 years, while the population standard deviation for cars owned by faculty is 2.08 years. Determine the 95% confidence interval for the difference between the true mean ages for cars owned by students and faculty. Step 1 of 3: Find the point estimate for the true difference between the population means.

Answers

Answer:

The point estimate for the true difference between the population means is of -2.62 years.

The 95% confidence interval for the difference between the true mean ages for cars owned by students and faculty is between -3.4 years and -1.84 years.

Step-by-step explanation:

Before building the confidence interval, we need to understand the central limit theorem, and subtraction between normal variables.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]

Subtraction of normal variables:

When we subtract normal variables, the mean is the subtraction of the mean, while the standard deviation is the square root of the sum of variances.

A sample of 138 cars owned by students had an average age of 5.13 years. The population standard deviation for cars owned by students is 3.45 years.

This means that:

[tex]\mu_{s} = 5.13, \sigma_{s} = 3.45, n = 138, s_s = \frac{3.45}{\sqrt{138}} = 0.2937[/tex]

A sample of 111 cars owned by faculty had an average age of 7.75 years.  The population standard deviation for cars owned by faculty is 2.08 years.

This means that [tex]\mu_{f} = 7.75, \sigma_{f} = 2.08, n = 111, s_f = \frac{2.08}{\sqrt{111}} = 0.2658[/tex]

Difference between the true mean ages for cars owned by students and faculty.

s - f

Mean:

[tex]\mu = \mu_s - \mu_f = 5.13 - 7.75 = -2.62[/tex]

This is the point estimate for the true difference between the population means.

Standard deviation:

[tex]s = \sqrt{s_s^2+s_f^2} = \sqrt{0.2937^2+0.2658^2} = 0.3961[/tex]

Confidence interval:

We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:

[tex]\alpha = \frac{1 - 0.95}{2} = 0.025[/tex]

Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].

That is z with a pvalue of [tex]1 - 0.025 = 0.975[/tex], so Z = 1.96.

Now, find the margin of error M as such

[tex]M = zs = 1.96*0.3961 = 0.78[/tex]

The lower end of the interval is the sample mean subtracted by M. So it is -2.62 - 0.78 = -3.4

The upper end of the interval is the sample mean added to M. So it is -2.62 + 0.78 = -1.84

The 95% confidence interval for the difference between the true mean ages for cars owned by students and faculty is between -3.4 years and -1.84 years.

Select all the factor pairs. What are the factor pairs of -144 that add to 0.

Answers

-12 and 12 are the aswer

I don't understand this question like for example what do you do with the $28.00 if it's not in the graph?​

Answers

Answer:

Choice C

Step-by-step explanation:

You find the ratio, so every if 4 McDonalds is $28 thats 4:28

You find the unit rate 1:x

divide each side by 4 and the unit rate is 7. Graph c shows cordinate (1,7)

What is the value? 3/4 + 7/12 - (-4)

Answers

Answer: 3/4 + 7/12 - (-4) = 3/4 + 7/12 + 4 (two minuses make a plus)

3/4 + 7/12 + 4/1 = 9/12 + 7/12 + 48/12           (4 = 4/1 or 4 divided by 1)  

(to add the fractions the denominators need to be the same. Multiply both the denominator and numerator by the same number)

(9+7+48)/12 = 64/12 = 5 and 1/3 or 16/3

We can also get this answer by leaving the 4 as a whole number:

9/12 + 7/12 +4 = 16/12 + 4 = 1 and 1/3 + 4 = 5 and 1/3

If you put the sum in a calclator you also get 5 and 1/3.

Hope this helps :)

Which polynomial is equal to 25y2-x2?

Answers

Answer:

I don't know if your ask which nomial it is but its a trinomial if that's what your asking

To ship a package, a shipping company charges $1.68 for each pound. How much would it cost to ship a 5.5 pound package?

Answers

Answer:

$9.24

Step-by-step explanation:

1.68÷2=0.84

1.68×5+0.84=9.24

Medication is prescribed in 8 out of every 10 hospital emergency room visits that involve an injury. If a large urban hospital had 660
emergency
room visits involving an injury in the past month, how many of these visits would be expected to include a prescription for
medication?
About
emergency room visits would be expected to include a prescription for medication.

Answers

Answer:

I don't know thats hard um well yeah

What is z in this equation

Answers

Answer:

I got you rn

Step-by-step explanation:

its 42 because opposite angles are congruent

Answer:

Step-by-step explanation:

z = 53 + 39     {Exterior angle property of triangle}

z = 92°

Which scatter plot shows a definite non-linear relationship between x and y?

Answers

Maybe c or A not completely sure try looking for the one you think it is and try reading it again

ILL GIVE BRAINLEST, tell whether the angles are adjacent or vertical. then find the value of x.

Answers

Answer:

The angles are adjacent and x=100

find which fraction is larger 3/12 ,2/6 ,1/24​

Answers

Answer:

3/12

Step-by-step explanation:

Answer:

2/6

Step-by-step explanation:

it is equal to 1/3. The others are equal to 1/4 and 1/24 so 1/3 is the largest

The length of rectangular garden is 3 feet longer than the width. If the area of the garden is 40 square feet, find the length and width of the garden.

The length is _____________ ft

The width is ______________ ft

Answers

Answer:

length = 8 ft

width = 5 ft

Step-by-step explanation:

width = w

length = w + 3

Area of rectangular garden = 40 square feet

length  *width = 40

(w + 3) *w = 40

w*w + 3*w = 40

w² + 3w = 40

w² + 3w - 40 = 0

w² + 8w - 5w - 8*5 = 0

w(w + 8) - 5 (w +8) =0

(w + 8) (w - 5) = 0

w - 5 = 0       {Ignore w + 8 =0, as measurement will not be in -ve}

w = 5 ft

l = 5 + 3

l = 8 ft

Determine the length of UT.

Answers

I think the answer would be 20

which of the following sequences of transformation maps MNO onto ABC?​

Answers

Answer:

MNO no se estoy en 6th y no se pero esta es mi respuesta espero y me la saco bien

The  sequence of transformations T(–2, 4) ry-axis ry-axis T(2, –4) can be used to map triangle MNO onto M"N"O".

What is Statistics?

Statistics is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data.

The given sequence of transformations is:

T(–2, 4) - translation by (-2, 4)

ry-axis - reflection across the y-axis

ry-axis - reflection across the y-axis

T(2, –4) - translation by (2, -4)

We can check whether this sequence of transformations maps triangle MNO onto M"N"O" by applying each transformation to the coordinates of triangle MNO in order:

T(–2, 4) maps M(5,-4) to M'(3,0), N(3,-2) to N'(1,2), and O(1,-3) to O'(-1,1).

ry-axis reflects M'(-3,0) to M"(-3,0), N'(1,2) to N"(-1,2), and O'(-1,1) to O"(1,1).

ry-axis reflects M"(-3,0) back to M"(-3,0), N"(-1,2) back to N"(-1,2), and O"(1,1) back to O"(1,1).

T(2, –4) maps M"(-3,0) to M'(-1,-4), N"(-1,2) to N"(1,-2), and O"(1,1) to O"(3,-3).

The resulting coordinates M'(-1,-4), N'(1,-2), and O'(3,-3) are the coordinates of triangle M"N"O".

Therefore, the given sequence of transformations T(–2, 4) ry-axis ry-axis T(2, –4) can be used to map triangle MNO onto M"N"O".

To learn more on Statistics click:

https://brainly.com/question/30218856

#SPJ2

Find the value of x
Help plz

Answers

The answer should be D:50

A sequence of Bernoulli trials consists of choosing components at random from a batch of components. A selected component is either classified as defective or nondefective. If the probability that a selected component is non-defective is 0.8, find the following probabilities: a) Three non-defective components in a batch of seven components. b) 8 non-defective components are drawn before the first defective component is chosen.

Answers

Answer:

a) 0.0287 = 2.87% probability that three non-defective components in a batch of seven components.

b) 0.0336 = 3.36% probability that 8 non-defective components are drawn before the first defective component is chosen.

Step-by-step explanation:

A sequence of Bernoulli trials composes the binomial distribution.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

And p is the probability of X happening.

The probability that a selected component is non-defective is 0.8

This means that [tex]p = 0.8[/tex]

a) Three non-defective components in a batch of seven components.

This is P(X = 3) when n = 7. So

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 3) = C_{7,3}.(0.8)^{3}.(0.2)^{4} = 0.0287[/tex]

0.0287 = 2.87% probability that three non-defective components in a batch of seven components.

b) 8 non-defective components are drawn before the first defective component is chosen.

Now the order is important, so the we just multiply the probabilities.

8 non-defective, each with probability 0.8, and then a defective, with probability 0.2. So

[tex]p = (0.8)^8*0.2 = 0.0336[/tex]

0.0336 = 3.36% probability that 8 non-defective components are drawn before the first defective component is chosen.

Which number has a greater value than |-2.6|?

Answers

Answer: I'm assuming that there were multiple choices provided for this question.. but just to help you, when a number is within the absolute value, it changes any number to a positive:

|-2.6| = 2.6

So any number higher than that work for this question :-)

It’s 2.$ since it can never be negative

The tape diagram represents an equation.
y
y
7
Write an equation to represe

Answers

Answer:

x + y = 7 an equation to represe.


1.2 The stove you must bake in is an old one and only has the temperature in
Fahrenheit. You are making rusks and must dry them overnight at a
temperature of 176°F.
Convert this temperature


to °Celsius.

Answers

Answer:

80°C

Step-by-step explanation:

you will say :

(176-33) x 5/9 = 70

bing + us ????? need help ples asap

Answers

Bing + us = Bingus. That's all

Answer:

it's very hard lol

Bing+us

=Bingus

Step-by-step explanation:

oh my gawd... hope it's ryt

thanks lol

Other Questions
Who created the artwork shown here? Why did the aunt think it was an improper story? Which planet has an orbital eccentricity most like the orbital eccentricity of the moon? What is the inverse calculator? For linear function `f`,`f(2)=0` and `f(4)=-6`. Write function `f` in slope-intercept form. Is 1 a real number? What goes up during stagflation? Pumpkin Transformation Move the figures according to the compositions of transformations given for each figure. Use very light pencil to keep track of each transformation as you work. Only darken in the final image of each figure. YA 1. Reflect: over the line x = -4 Translate: (x,y) (x-4, y-18) Reflection AC, 2. Rotate: 180 Translate: (x,y) (x-3, y + 4) 3. Reflect: over the line y = x + 11 Rotate: 180 4. Translate: (x, y) (x+6, y-10) Rotate: 90 clockwise Reflect: over the line y = -11 5. Rotate: 270 Reflect: over the line y = -10 Translate: (x, y) (x-12, y) 6. Reflect: over the y-axis Reflect: over the line y = x Translate: (x, y) (x,y-3) 1 5 2 10 -10 Why did the aunt have to use the word don't show of them? Search the internet and find information on major technology projects. Then, assign yourself as a project manager for this project and start managing it by: o Identifying the stakeholders for the project. o Identify the business, organization, and technology aspects related to the project. o Define the personality of the organization undertaking the project by applying the four frames of organizations. o Choose the organizational structure that in your opinion will suit the project and can you provide a justification for why you selected this type of structure? o Which project lifecycle model is most suited for the project? Provide a justification for your answer A networked application on the web obtains information from various sources and combines them to show a result to the user, it may be using: a. Service oriented architecture b. Ethernet OC. Peer-to-peer computing Consider the following statements: Statement 1: Drive-by hacking is legal Statement 2: War driving is illegal O a. Statement 1 is true, Statement 2 is false Ob.Statement 1 is true, Statement 2 is true OC. Statement 1 is false, Statement 2 is true d. Statement 1 is false, Statement 2 is false a solenoid 4.00 cm in diameter and 20.0 cm long has 500 turns and carries a current of 15.0 a. calculate the magnetic flux through the circular cross-sectional area of the solenoid. What are the rights in Article 3? What does the farmhouse represent in the story Animal Farm? Who controls things in a command economy? write what are the layers over the wall of blood vessels,how do these layers differ among arteries and veins? How do i know how many valence electrons a metal has? If f(x)\ =\ x^{2}+3f(x) = x 2 +3 , find f(-2)f(2) . A researcher designs an experiment to investigate whether soil bacteria trigger the synthesis of defense enzymes in plant roots. The design of the experiment is presented in Table 1. For each group in the experiment the researcher will determine the average rate of change in the amount of defense enzymes in the roots of the seedlings Table 1. An experiment to investigate the effect of soll bacteria on plant defenses Group Number of Seedings Type of Soil Treatment Solution 1 10 Sterlepotting sol Contains actively reproducing soll bacteria 2 10 Sterile potting sol Contains heille soll bacteria 3 10 Sterle porting soil Contains no bacteria Which of the following statements best helps justify the inclusion of group 2 as one of the controls in the experiment? A) I will show whether the changes observed in group 1 depend on the metabolic activity of Boll bacteria B) will show whether the changes observed in group 1 depend on the type of plants used in the experiment. C) It will show the average growth rate of seedings that are maintained in a nonsterile environment D) I will show the changes that occur in the roots of seedlings following an infection by soll bacteria. What was Douglass famous quote about men and chains?