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
gladu [14]
4 years ago
5

The data obtained from a random sample of track athletes showed that as the foot size of the athlete decreased, the average runn

ing speed decreased. Which statement is best supported by the data?Immersive Reader
Mathematics
1 answer:
Rufina [12.5K]4 years ago
3 0

Answer:

The correct option is;

(3) The sample of track athletes show that there is a correlation between foot size and running speed

Step-by-step explanation:

The statements are analysed as follows;

(1) Smaller foot sizes cause track athletes to run slower.

The above statement is a conclusion and it infers more information than is contained in the question statement because there are other factors such as taller athletes run faster than average sized athletes

(2) The sample of track athletes shows a causal relationship between

foot size and running speed.

The above statement is similar to the one above as it is a milder conclusion and it infers more information than is contained in the question statement

(3) The sample of track athletes shows a correlation between foot size

and running speed.

The  above statement is correct as is directly supported by the data as it is a statement made based directly the data

(4) There is no correlation between foot size and running speed in

track athletes.

The above statement is not supported by the available data.

You might be interested in
Which is the equation of a parabola with a directrix at y=2 and a focus at (5,0)
CaHeK987 [17]

Check the picture below, so the parabola looks more or less like so.

the vertex is always half-way between the focus point and the directrix, and since the parabola is opening downwards, the "p" distance is negative.

\textit{vertical parabola vertex form with focus point distance} \\\\ 4p(y- k)=(x- h)^2 \qquad \begin{cases} \stackrel{vertex}{(h,k)}\qquad \stackrel{focus~point}{(h,k+p)}\qquad \stackrel{directrix}{y=k-p}\\\\ p=\textit{distance from vertex to }\\ \qquad \textit{ focus or directrix}\\\\ \stackrel{"p"~is~negative}{op ens~\cap}\qquad \stackrel{"p"~is~positive}{op ens~\cup} \end{cases} \\\\[-0.35em] ~\dotfill

\begin{cases} h=5\\ k=1\\ p=-1 \end{cases}\implies 4(-1)(y-1)~~ = ~~(x-5)^2\implies -4(y-1)=(x-5)^2 \\\\\\ y-1=-\cfrac{1}{4}(x-5)^2\implies y=-\cfrac{1}{4}(x-5)^2 + 1

4 0
3 years ago
yesterday 50 bakery customers muffins and 11 of those customers bought bran muffins if 150 customers buy muffin's tomorrow how m
Andrews [41]

Answer:

33 banana muffins

Step-by-step explanation:

11/50 = x/150

50x=1650

50x/50=1650/50

x=33 !

8 0
3 years ago
A plane traveled 1463 miles to Moscow and back. The trip there was with the wind. It took 11 hours. The trip back was into the w
Studentka2010 [4]

The speed of plane is 105 miles per hour and speed of wind is 28 miles per hour.

Step-by-step explanation:

Given,

The distance traveled by plane = 1463 miles

The trip with the wind took 11 hours.

The trip took 19 hours against the wind.

Let,

s be the speed of plane and w be the speed of wind.

Therefore;

Speed with the wind = s+w

Speed into the wind = s-w

We know that;

Distance = Speed * Time

Therefore;

Equation for trip taken with wind.

1463 = 11(s+w)

Dividing both sides by 11

\frac{1463}{11}=\frac{11(s+w)}{11}\\133=s+w\\s+w=133\ \ \ Eqn\ 1

Equation for trip taken into the wind

1463 = 19(s-w)

Dividing both sides by 19

\frac{1463}{19}=\frac{19(s-w)}{19}\\77=s-w\\s-w=77 \ \ \ Eqn\ 2

Adding Eqn 1 and 2

(s+w)+(s-w)=133+77\\s+w+s-w=210\\2s=210

Dividing both sides by 2

\frac{2s}{2}=\frac{210}{2}\\s=105

Putting s=105 in Eqn 1

105+w=133\\w=133-105\\w=28

The speed of plane is 105 miles per hour and speed of wind is 28 miles per hour.

3 0
3 years ago
Solve 5/8+3/4 -2/3-5/6​
Kobotan [32]
The answer to that is -1/8
8 0
3 years ago
What is the measure in radians for the central angle of a circle whose radius is 8 cm and intercepted arc length is 5.6 cm? Ente
Lesechka [4]

central angle theta (in radians) = arc length / radius

So theta = 5.6/8 = 0.7 radians

8 0
4 years ago
Read 2 more answers
Other questions:
  • Given that p(x) is a polynomial in 2 and a € R. If (x – a) is a factor of p(I), then p(a) must be
    5·1 answer
  • Post
    5·1 answer
  • I'm confused on what to do since I day dream during class, I know it's a bad thing but I have a hard time paying attention​
    8·1 answer
  • If the perimeter of a rectangle measures 46 feet and the length of the rectangle is 8 feet, what is the width?
    13·2 answers
  • Factor out the GCF of 5x2 + 15x
    15·1 answer
  • A rectangle has a length of 9 mm. A similar rectangle is drawn using a scale of 1:3. What is the length of the second rectangle?
    10·2 answers
  • A room has a maximum capacity of 396 people. How many people are allowed in the room at anytime?
    10·1 answer
  • Is (4+ n) a factor, product, or diffrence
    11·1 answer
  • Katy made muffins on 3 days. Each day she used 14 of a stick of butter to make the muffins.
    14·1 answer
  • PLEASE HELP fast !!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!