The decline of salmon fisheries along the Columbia River in Oregon has caused great concern among commercial and recreational fishermen. The paper 'Feeding of Predaceous Fishes on Out-Migrating Juvenile Salmonids in John Day Reservoir, Columbia River' (Trans. Amer. Fisheries Soc. (1991: 405-420)) gave the accompanying data on
y= maximum size of salmonids consumed by a northern squaw fish (the most abundant salmonid predator) and
x= squawfish length, both in mm.
Use the following statistics to give the equation of the least squares regression line.
x=524.880,
y=413.975,sx=12.251,sy=12.300,
r=0.9562
options:
a) ^y=0.960xâ89.910
b) ^y=0.960x+89.910
c) ^y=â89.910x+0.960
d) ^y=0.952x+89.910
e) ^y=0.952xâ89.910
f) None of the above

Answers

Answer 1

Answer:

the correct answer is not there. here it is:

^y = 0.960x - 89.910

Step-by-step explanation:

we have regression line equation as:

^y = a+bx

we have the following details available

x = 524.88

y = 413.975

Sx = 12.251

Sy = 12.300

r = 0.9562

we have to find values of a and b

b = rSy/Sx

= 0.9562(12.3)/12.251

= 11.76126/12.251

= 0.960

a = y - intercept

= 413.975-0.96(524.88)

= 413.975-503.8848

= - 89.9098

a = -89.910

putting these values into the equation, we have:

^y = -89.910 + 0.9600x

which is also

^y = 0.960x - 89.910


Related Questions

Twice the sum of three and a number is 30. Find the number

Answers

9514 1404 393

Answer:

2(x +3) = 3012

Step-by-step explanation:

When x represents the number, "the sum of 3 and a number" is (x+3). Twice that sum is 2(x+3). "Is 30" means this expression is equal to 30:

  2(x +3) = 30 . . . . an equation for the given conditions

__

We can solve this equation by dividing by 2:

  x + 3 = 15

  x = 12 . . . . . . subtract 3

The number is 12.

7, 10,13,...
Find the 33rd term

Answers

Answer:

the answer is 113

Step-by-step explanation:

add by 3

Excuse me little lady how was your day what’s your number may I say

The angle between 0° and 360° that is coterminal with the 664° angle is
degrees.

Answers

Answer:

it would be 0.5 degrees

giving 50 PONITS I MARK BRAINLIEST
the question is in the picture, its easy but I'm lazy, tyyy

Answers

Answer:

76,200

Step-by-step explanation:

move the decimal three places to the right

76,200

Answer:

7620

I hope this helps!

please help quick:)
x=
4
9
16

Answers

Answer:

16...is your answer..hope this help you ....

Teresa started a game at 6:25 PM and finished it at 7:41 PM.
How long did it take her? Give your answer in minutes.

Answers

76 minutes hope this helps

Answer:

It took 1 hour and 16 minutes

Step-by-step explanation:

Write an equation passing through the point (-3,1) that is parallel to y=2x+5

Answers

Answer:

Step-by-step explanation:

y - 1 = 2(x + 3)

y - 1 = 2x + 6

y= 2x + 7

I’ll make brainliest..pls help

Answers

Answer:270

Step-by-step explanation:

2. Find the length of segment JK with endpoints J(4,8) and K(-1,-2). Leave answer as a
radical. Simplify if necessary.

Answers

Answer:

Distance of JK = 15 unit

Step-by-step explanation:

Given:

J(4,8)

K(-1,-2)

Find:

Distance of JK

Computation:

Distance = √(x₂-x₁)² + (y₂-y₁)²

Distance of JK = √(-1-4)² + (-2-8)²

Distance of JK = √25 + 100

Distance of JK = √125

Distance of JK = 15 unit

how many solutions does the following equation have ? 12x+18=-3(-4x-6)

Answers

(−∞,∞) infinite solutions

The product of 3 and 4 2/5

Answers

Answer:

here! I hope this helps :) the answer is 13.2 or 13 1 (upon 5)

Step-by-step explanation:

3 × 4 2 (upon 5)

=3× 22 (upon 5)

=66 (upon 5)

=13 1 (upon 5)

IF YOU ANSWER WILL MARK BRAINLIEST WILL GIVE XTRA POINTS
Find the equation of the line in slope-intercept form through (−5, 6) with slope = 3

Answers

Answer:

Step-by-step explanation:

y - 6 = 3(x + 5)

y - 6 = 3x + 15

y = 3x + 21

COMPLETE THE SENTENCE: Two lines that do not intersect and are also not parallel are ___
lines.

Answers

Answer: skew

Step-by-step explanation:

Just did it

please tell me what the domain and range of graphs Part 4​

Answers

(From left to right):

Graph 1
Domain: All real numbers.
Range: All real numbers.


Graph 2
Domain: All real numbers.
Range: Assuming the the scaling is by one’s:
[ 3, infinity )

Graph 3
Domain: [ -2, infinity )
Range: [ -3, infinity )

Hope this helps! (:

THIS WAS THE ONE I MEANT TO POST

Find the number of ways four out of nine patients can be chosen to complete a survey

Answers

jijfidirjejrspoxfnkd

Need this Slope Answer! Help please.

Answers

Answer:

0.5

Step-by-step explanation:

I think it’s 0.5 slope is not very difficult

Rebecca’s boss pays her time and a half for overtime work. If her regular wage is $13.50 per hour, what is her overtime rate?

Answers

Answer: 20.25

Step-by-step explanation: Rebecca can expect to be making her regular 13.50 an hour, however once time and a half hits she’s looking at taking her 13.50 and dividing it by 2. So 13.50 divided by two is 6.75. You then take that 6.75 and add it on top of her regular 13.50 hourly. Putting you at 20.25 for time and a half.


PLEASE HELP!!! ILL GIVE BRANLIEST *EXTRA POINTS* dont skip :((

Answers

Answer:

Grain of sand estimate= 4.6 × 10-3

Dust particle estimate: 5 × 10-5

92 times greater

Step-by-step explanation:

Answer:

diameter of grain is 92 times greater than the diameter of dust particle

. What value/s of x make x2 + x - 12 = 0 true?
a. 1 and -2 b. 3 and -4
c. 5 and -6​

Answers

B. 3 and -4 is the answer.

Fred is making a wooden box in the shape of a right rectangular prism.
The dimensions of the box are 12 inches by 4- inches by 4- inches.
What is the volume of the wooden box?

Answers

Answer:

The volume of the box is 192.

Step-by-step explanation:

width *  height * width = volume

so..

4 * 4 * 12 = 192.

angles a and b are vertical angles. If mA = (5x – 24)° and m B = (3x + 24),
then find the value of x.

Answers

Answer:

The correct answer is x = 24.

Step-by-step explanation:

To solve this problem, we must remember that vertical angles have the same measure.  This lets us set up the following equation:

m<a = m<b

If we substitute their values, we get the following:

5x - 24 = 3x + 24

To solve this equation, we can first subtract 3x from both sides of the equation.

2x - 24 = 24

Next, we can add 24 to both sides of the equation.

2x = 48

Finally, we can divide both sides of the equation by 2.

x = 24

Therefore, the answer is x = 24.

Hope this helps!

A proportional relationship is represented with the equation y=5x. What is the constant of proportionality of the relationship?
PLZ HELP

Answers

The constant is 5, as it relates the two values x and y.

Which of the following is a valid step in the solution of $2x + 4x + 3 = 0? 2 42x12 = (4x+3 2 42x -VX+31 x 421 VI-3 4271* = -41+316 RETRY​

Answers

Answer:

1.1 Pull out like factors

6x+3= 3•(2x+1)

2.1 This equation has no solution

A non-zero constant never equals zero

2.2 Solve: 2x+1=0

Subtract 1 from both sides of the equation: 2x= -1

Divide both side of the equation by 2

x= -1/2= -0.500

Answer:

a

Step-by-step explanation:

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Answers

Answer:

-2.94

Step-by-step explanation:

Determine the intercepts of the line

x- intercept (_,_)
y- intercept (_,_)

Answers

Answer:

y: (0,15)

X: (-40,0)

Answer:

X intercept is (-40,0) y intercept is (0,15)

Step-by-step explanation:

The intercept is when it crosses the axis.

How can you estimate the area of a irregular figure?

Answers

Answer: To find the area of irregular shapes, the first thing to do is to divide the irregular shape into regular shapes that you can recognize such as triangles, rectangles, circles, squares and so forth... Then, find the area of these individual shapes and add them up!

Answer:

and that how you estimate the area of an irregular figure

52.45 x 4.78 \
What is the value of the expression?

Answers

i think the answer is 250.711

Answer:

250.711

Step-by-step explanation:

You just multiply my dude.

2. What is the x-intercept of the line
5x – 3y = 15? Write your answer as an ordered
pair.

Answers

Answer:

The x-intercept of the line is (3,0)

Step-by-step explanation:

5x - 3y = 15

5x - 3(0) = 15

5x - 0 = 15

(add 0 on both sides the cancel out -0)

5x = 15

(divide by 5)

x = 3

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(helppp)

Answers

Answer:

A

Step-by-step explanation:

because all the other ones are facts

least common denominator of 11/6 and 1/5

Answers

Answer:

The least common denominator would be 30.

Step-by-step explanation:

5- 5, 10, 15, 20, 25, 30, 35, 40

6- 6, 12, 18, 24, 30, 36 42, 48

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