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
DedPeter [7]
4 years ago
13

What is the best estimate for the value of r in the scatter plot?

Mathematics
1 answer:
Wittaler [7]4 years ago
5 0

From the observation of the dispersion graph it is concluded that the answer to this question is option D. r = -0.5.

The correlation coefficient "r" is a measure of the linear relationship between two random variables.

When the correlation is positive, the value of "r" is between 0 and 1. This means that when one variable increases the other too.

When the correlation is negative, the value of "r" is between -1 and 0. This means that one variable decreases as the other increases.

When there is no correlation the value of "r" is 0


In this case, the dispersion chart shows that the variable "y" decreases as the variable "x" increases. Therefore the value of "r" must be negative. Of all the options, the only one that presents a value of negative r is option D:

 r = -0.5

You might be interested in
The area of trapezoid AEDB is 300 square centimeters. Triangle EDC has a height of 20 cm and a base of 10 cm. What is the area o
Ksenya-84 [330]
Using base x height you get 100 square centimeters
4 0
3 years ago
Read 2 more answers
The measure of ZPQS is 180°. The measure of ZRQS is 30°.
Ray Of Light [21]
The measure of ZPQR is C. 150°
4 0
3 years ago
Brainllest and Points if your correct!
Gelneren [198K]

Answer:

wouldn't you drag 2 and one half of a football? can you do that?

Step-by-step explanation:

because 2.5 every basketball

8 0
3 years ago
Read 2 more answers
Please show full solutions! Will mark brainliest for the best answers! Thanks. Question is attached.
Rzqust [24]

9514 1404 393

Answer:

  a square 175 m on a side

Step-by-step explanation:

Let x and y represent the sides of the rectangle. Then the perimeter is ...

  P = 2(x + y) = 700

  x + y = 350 . . . . . . . divide by 2

  y = 350 -x . . . . . . . . subtract x

The area of the fenced field is ...

  A = xy

  A = x(350 -x)

This is a quadratic function that has zeros at x = 0 and x = 350. The axis of symmetry is x = (0 +350)/2 = 175. The vertex (maximum area) is on the axis of symmetry, so corresponds to x = 175. The y-value there is ...

  y = 350 -x = 350 -175 = 175

That is, the maximum area will be obtained when the fenced area is a square. Each side of the square is 175 m, which is 1/4 of the total length of the fence.

The dimensions of the space are 175 m by 175 m.

8 0
3 years ago
=)))))))))))))))))))))))))​
Drupady [299]

Answer:

c

Step-by-step explanation:

-10x is less than or equal to 40

x is greater than or equal to -4

flip the signs when you divide by a negative #

3 0
3 years ago
Other questions:
  • each bag of pattern blocks contains 50 block. to make a class pattern, the teacher combines 4 bags of blocks. how many pattern b
    10·1 answer
  • Every year, Calaveras County holds a frog jumping contest. Mia entered her frog into the 100-yard contest and it completed the r
    12·1 answer
  • There are 12 students on the basketball team. In how many ways can the coach set up the starting lineup of 5 players?
    15·2 answers
  • In the city of Manhattan, it takes about 13 Starbucks to serve every 100,000 people. As of 2019, Manhattan has
    8·2 answers
  • I need help on it pls
    6·1 answer
  • Find the slope containing the pair of points. (3,-3) (9,-1)
    7·2 answers
  • The probability that no one is waiting in a given hour
    14·2 answers
  • Estimate the answer to<br> 64 x 186<br> 21 x 98
    11·2 answers
  • Miya plans to visit her sister over the summer. On a map, her house is 2 inches from her sister’s house. If the map uses a scale
    6·1 answer
  • Anyone know how to do area or volume? Any help will do! thanks
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!