Every day for a week, he counts how many times each player can leg press 350 pounds. The following week, he has each player sprint 40 yards every day. The tables shows the average number of leg-press repetitions and the average 40-yard dash time (in seconds) for seven randomly selected players. What is the equation of the line of best fit

Answers

Answer 1

Complete question :

A college football coach wants to know if the is a correlation between his players' leg strength and the time it takes for them to sprint 40 yards. he sets up the following test and records the data:

Every day for a week, he counts how many times each player can leg press 350 pounds. The following week, he has each player sprint 40 yards every day. The tables shows the average number of leg-press repetitions and the average 40-yard dash time (in seconds) for seven randomly selected players. What is the equation of the line of best fit? How many seconds should he expect a player to take to run 40 yards if that player can do 22 leg-press repetitions?

Leg Press (reps)|40-yard Dash (s)

15 |5.2

18 |6.3

8 |6.8

30 |8.2

26 |8.0

12 |5.3

21 |5.9

Answer:

ŷ = 0.1073X + 4.5365

6.9

Step-by-step explanation:

Leg Press (reps)X:

15

18

8

30

26

12

21

Y:

5.2

6.3

6.8

8.2

8.0

5.3

5.9

Using a regression calculator :

The equation of line of best fit is :

ŷ = 0.1073X + 4.5365

Slope or gradient = 0.1073

Intercept = 4.5365

X = independent or predictor variable (leg press)

Y = predicted variable (40 yard dash)

B)

X = 22

Y = 0.1073(22) + 4.5365

Y = 6.8971

Y = 6.9


Related Questions

QUCIK!!!!

Find the equation of the line with Slope = 5 and passing through (7,43). Write your equation in slope
intercept form

Answers

Answer:

Y=5x+8

Step-by-step explanation:

43=5(7)+b Substitute in the ordered pair and solve in parathensis

43=35+b Subtract 35 from both sides

43-35=-35+b Did you subtract?

8=b The variable is 8.

y= 5x+8 Rewrite the equation in slope intercept form

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Step-by-step explanation:

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Answer:

a

Step-by-step explanation:

Answer:

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Step-by-step explanation:

If 4 tickets cost $28.96, how much is one ticket?

Answers

Answer:

7.24

Step-by-step explanation:

Divide 28.96 by 4

28.96/4=

7.24

Answer:

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Step-by-step explanation:

28.96 ÷ 4 = 7.24

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An aircraft seam requires 20 rivets. The seam will have to be reworked if any of these rivets is defective. Suppose rivets are defective independently of one another, each with the same probability. (Round your answers to four decimal places.) (a) If 16% of all seams need reworking, what is the probability that a rivet is defective

Answers

Answer:

probability that a rivet is defective is 0.00868

Step-by-step explanation:

given data

rivets = 20

all seam need reworking P = 16% = 0.16

solution

we consider here probability of a defective rivet = p

and 0.16 = P [Seam needs reworking) = P (at least one rivet in the seam is defective)

so that for non-defective = 1 - P [all the rivets are non-defective]

and that will be here as = 1 - P [rivet 1 is non-defective, rivet 2 is non-defective, rivet 3 is non-defective,...............,rivet 20 is non-defective]

= [tex]1 - (p})^{20}[/tex]     ....................1

so

1-0.16 = [tex]1 - (p})^{20}[/tex]

0.84 = [tex]1 - (p})^{20}[/tex]

[tex]0.84^{\frac{1}{20}}[/tex] = 1 - p

solve it we get

p = 0.00868

so, probability that a rivet is defective is 0.00868

does anyone know when the next season of cobra kai is coming out? ​

Answers

Answer:

Early 2022

Step-by-step explanation:

No sorry, maybe this year.

D'Andre's Donuts makes both chocolate and plain glazed donuts. Each Saturday, they make 13 plain glazed donuts for every 7 chocolate glazed donuts. These are Kelli's favorite donuts. What is the ratio of chocolate glazed to plain glazed?

Answers

Answer:

The ratio is 7 : 13

Step-by-step explanation:

Given that:

Number of plain glazed donuts made on Saturday = 13

Number of chocolate glazed donuts made on Saturday = 7

Ratio of chocolate glazed donuts to plain glazed donuts;

Chocolate glazed donuts : Plain glazed donuts

7 : 13

Hence,

The ratio is 7 : 13

please answer i know the picture is a little blurry but please i will give you brainliest!!

Answers

Answer: the 1st one.

Step-by-step explanation: becuase today I was helping out a freind with this.  So it the first one


It is a collection or set of units or
entities from whom we got the data.
universe
variable
population
sample​

Answers

Answer:

Population.

Step-by-step explanation:

Population can be defined as a collection or set of units or entities from whom we got the data.

This ultimately implies that, a population is the larger set from which other units can be picked from.

Hence, a population is an entire collection of outcomes or objects from which we can obtain or collect data. For example, the number of new born babies in a hospital, a country and the total number of football players in a soccer league.

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Subset (sample) = comedy movies, horror movies, romance movies, and action movies.

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first number and three times the second number
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Answers

The numbers are 18+12=30 or 18 and 12.
18+12x3=54
The product of the numbers is 216.

Select the correct answer.
Which expression is equivalent to the given expression? Assume the denominator does not equal zero.

Answers

The answer is B. When dividing exponents, you divide the coefficients and subtract the exponents from the numerator to the denominator.

So, in this case, 16/8 is 2 (eliminating C and D). Then, you subtract the exponents on r and s. For r, that’s 6-2 so the answer will be r^4. For s, that’s 3-6 so the answer will be s^-3, or 1/s^3. Put it all together and you get 2r^4/s^3, or B.

The expression (16r⁶s³) / (8r²s⁶) in the simplified form will be 2r⁴ / s³. Then the correct option is B.

What is Algebra?

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

The expression is given below.

⇒ (16r⁶s³) / (8r²s⁶)

Simplify the expression, then we have

⇒ (16r⁶s³) / (8r²s⁶)

⇒ 2r⁴ / s³

The expression (16r⁶s³) / (8r²s⁶) in the simplified form will be 2r⁴ / s³. Then the correct option is B.

More about the Algebra link is given below.

https://brainly.com/question/953809

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12 + y = y + 12*
Commutative Property
Associative Property
Identity Property
Distributive Property

Answers

Answer:

Commutative

Step-by-step explanation:

Identity equals adding 0

Associative means grouping diff. ways

Distributive is distributing into sections

write the first 4 terms of the sequence defined by its given rule 5. f(1) = 7, f(n) = -4.f(n - 1) + 15

Answers

Answer:

The first 4 terms of the sequence are: 3, 9, 81, 6561

Step-by-step explanation:

We are given the following recursive function:

[tex]f(n) = [f(n-1)]^{2}[/tex]

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[tex]f(1) = 3[/tex]

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The third term of the sequence is:

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The fourth term of the sequence is:

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The first 4 terms of the sequence are: 3, 9, 81, 6561

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(b) 1,498 km in 7 hours

Answers

Answer:

2133 km in 6 hours is lower than 1498 km in 7 hours

Step-by-step explanation:

w=x^2-2yx make y the subject of the formula

Answers

Answer:

[tex]y=\dfrac{x^2-w}{2x}[/tex]

Step-by-step explanation:

The given equation is :

w=x²-2yx

We need to find the value of y.

Subtract x² from both sides.

w-x²=x²-2yx-x²

w-x² = -2yx

Dividing both sides by -2x

[tex]\dfrac{w-x^2}{-2x}=\dfrac{-2yx}{-2x}\\\\y=\dfrac{w-x^2}{-2x}\\\\y=\dfrac{x^2-w}{2x}[/tex]

So, the value of y is equal to [tex]\dfrac{x^2-w}{2x}[/tex].

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Answers

Answer:

79°

Step-by-step explanation:

Line pu is a straight line meaning it has a measure of 180°.

37+34+30=101

180-101=79

You have inherited land that was purchased for $65,000 in 2015. The value of the land
increased by approximately 5% per year. What is the approximate value of the land in
the year 2030?

Answers

Answer:

in 2030 the land will aproxmatly be worth $113750

Step-by-step explanation:

How many 1/6 are in 2/3

Answers

Answer:

4

Step-by-step explanation:

2/3 ÷ 1/6 = 2/3 · 6/1 = 4

Answer:

It takes 4 one-sixth sized pieces to make the two-thirds. and we can see that there 1 \times 6 = 6 sixths in a whole.

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An air conditioning System can circulate 480 cubic feet of air per minute. How many cubic yards of air can circulate per minute?

Answers

Answer:

1440 cubic yards

Step-by-step explanation:

There are 3 feet in a yard. Multiply 480 x 3 using the algorithm and you get 1440.

Suppose that the people in a certain city are catching cold. It is observed that after one​ week, 40% of the people who were sick are still sick. Of the people who were​ well, 30% are sick after one week.​ If, at some particular​ time, 20% of the people are​ ill, find the proportion of people who are sick after two weeks

Answers

Answer:

the proportion of people who are sick after two weeks is 33.2%

Step-by-step explanation:

Given the data in the question;

Let there be 100 people in the city;

20% of them are sick( 20/100 × 100) = 20 people

so 80% are fine = ( 100 - 20 ) = 80

after one​ week, 40% of the people who were sick are still sick

40/100 × 20 = 8%

of the 80% of people who were well, 30% got sick after one week

30/100 × 80 = 24%

so after one week. 8% + 24% = 32% of the people were sick,

hence 68% are fine.

now, after second week 40% of sick and 30% of not sick people previously will be sick

∴ Total people who are sick after two weeks    

⇒ 40/100 × 32 + 30/100 × 68

= 12.8 + 20.4

= 33.2

Therefore, the proportion of people who are sick after two weeks is 33.2%

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Answers

Answer:

68 is the answer

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Answers

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20

Step-by-step explanation:

Solve for y:

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Answers

Answer:

C.     y=1/4

Step-by-step explanation:

76y=19

y=19/76

7=.25 or 1/4

Answer:

Hi! The correct answer is C. y = 1/4

Step by step explanation:

Divide each term by 76 and simplify.

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Answers

Answer:

-x + y = 8

Step-by-step explanation:

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choose any point ( -1, 7 ) or ( 2,10 )

y - 7 = 1( x + 1 )

y - 7 = x + 1

-x + y = 8

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Answers

Answer:

How close the correlation is. the closer the correlation coefficient is to ±1, the stronger the correlation

Step-by-step explanation:

Equation A: y = 3x - 1
Equation B: y = 1/2x + 1
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Answers

Answer:

equation b the y intercept is the constant which is 1

Step-by-step explanation:

Is the following set a function?
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Answers

Answer:

yes i think

Step-by-step explanation:

No because there’s two 1s and the x

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a)
b)
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CD OP
2C - ZO
ZB ZM
c)

Answers

the correct answer is a b and c

Answer:b and c

Step-by-step explanation:

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Answers

Answer: none of them are correct

Step-by-step explanation:

BECUASE if it is then it would show it on the nuber line.

Answer:

A

Step-by-step explanation:

Add 3 to each side, there's your answer there.

Please help me !!! I will give branlyist ONLY IF RIGHT Question 2 (5 points)
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A triangle can be formed with side lengths 4 in, 5 in, and 8 in. (5 points)
1) True
2) False

Answers

Answer:

true

Step-by-step explanation:

the triangle inequality statement says the sum of any two sides must be greater than the third side

value 4, 5, and 8 work

4 + 5 > 8  true

4 + 8 > 5  true

5 + 8 > 4  true

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