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
Marta_Voda [28]
4 years ago
6

Which correlation coefficient obtained from modeling advertising and sales data of tutti frutti ice cream expresses the stronges

t correlation of the data?
a.r = .10
b.r = .50
c.r = .75
d.r = .90
Mathematics
2 answers:
Westkost [7]4 years ago
8 0
Just had this problem the answer is D.
Sidana [21]4 years ago
4 0

Answer:

d) r=0.90

Step-by-step explanation:

When the r value is closer to +1 or -1, it indicates that there is a stronger linear relationship between the two variables. A correlation nearerto -1 is a strong negative correlation while a correlation of 0.10 would be a weak positive correlation.

Correlation coefficient measures the strength of association between two variables.

It may be positive or negative.

If nearer to 1 or - there is strong correlation

Since here is it 0.90 positive and nearer to 1 out of all 4 options

option d is correct

You might be interested in
If x2+1/x2=18, find the value of x3−1/x3
Elden [556K]

Answer:

There are 2 answers : 76 or -76

Step-by-step explanation:

x^2+\dfrac{1}{x^2} =18\\\\(x-\dfrac{1}{x} )^2=x^2+\dfrac{1}{x^2} -2=18-2=16\\\\x-\dfrac{1}{x}=4\ or\ x-\dfrac{1}{x}-4\\\\(x-\dfrac{1}{x} )^3=x^3-\dfrac{1}{x^3} -3x^2*\dfrac{1}{x}+3x*\dfrac{1}{x^2}\\\\=x^3-\dfrac{1}{x^3}-3(x-\dfrac{1}{x})\\\\x^3-\dfrac{1}{x^3}=(x-\dfrac{1}{x} )^3+3(x-\dfrac{1}{x})\\\\if\ x-\dfrac{1}{x}=4\ then \ x^3-\dfrac{1}{x^3}=4^3+3*4=64-12=76\\\\if\ x-\dfrac{1}{x}=-4\ then \ x^3-\dfrac{1}{x^3}=(-4)^3+3*(-4)=-64-12=-76\\\\

7 0
3 years ago
Read 2 more answers
Factor 30-6v-18w30−6v−18w30, minus, 6, v, minus, 18, w to identify the equivalent expressions.
kompoz [17]

Answer:

Option C.

Step-by-step explanation:

The given expression is

30-6v-18w

We need to find the expression which is equivalent to the given expression.

The given expression can be rewritten as

6\times 5-6\times v-6\times 3w

The greatest common factor (G.C.F.) is 6. Taking out G.C.F., we get

30-6v-18w=6(5-v-3w)

Hence, the correct option is C.

7 0
4 years ago
Y = -x + 3<br> slope =<br> y-intercept =
sergiy2304 [10]

Answer:

m = -1

b = 3

Step-by-step explanation:

This equation is in slope intercept form: y = mx + b

m is the slope

b is the y intercept

m = -1

b = 3

5 0
4 years ago
Read 2 more answers
Lean wants to giftwrap a present she got for her little brother. how many square inches of giftwrap will be needed to cover a bo
Natalka [10]
Check the picture below.

so.. notice, the box for the gift is really just a rectangular prism, which is really just 6 rectangles stacked up to each other at the edges.

the front and back are two 5x3 rectangles

the left and right are just two 3x7 rectangles

and the top and bottom are just two 5x7 rectangles

so, just get the area of each, sum them up, and that's the area of the rectangular prism and thus of the box, and that's how many in² she will need.

4 0
4 years ago
Which systems of equations have no solution?<br> HELPPP! WILL GIVE BRAINLIEST
saw5 [17]

i know the answer it's the first one

on the left

3 0
3 years ago
Read 2 more answers
Other questions:
  • It took a race car driver 3 hours and 15 minutes to go 500 miles. What was his mean rate of speed, to the nearest tenth of a mil
    13·2 answers
  • What is the distance between the points , (−5,−7) and (−5,4.) please answer fast :)
    10·1 answer
  • How do you know whether a number is a multiple of another number?
    9·2 answers
  • Find the slope through the points (-18, -20), (-18, -15)<br> SHOW ALL WORK, PLEASE HELP ASAP
    14·1 answer
  • HELP PLEASE <br><br> Solve 8 ⋅ 32 + 3<br><br> A.18<br> B.75
    7·1 answer
  • Y = 6/5x - 4 had fjdjjdjdjdidjdjjdjdjjdjdud
    8·1 answer
  • You pay $3 per square foot for carpeting. Which equation can be solved to find the amount you will pay to cover a triangular sec
    15·2 answers
  • Line m is perpendicular to x − 2y = −1 and passes through (9, 2). What is the slope of line m?
    14·1 answer
  • Can you help me with these 2
    12·2 answers
  • I need help please!!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!