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
kap26 [50]
2 years ago
12

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:
morpeh [17]2 years ago
8 0
Just had this problem the answer is D.
steposvetlana [31]2 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
Look at the function f(x) = x3 - 4 x. which describes an interval in which the function is increasing?
Bad White [126]
Differentiate it
 get  f ' (x)=3x^2-4
put 3x^2-4=0
x=2/√3,-2/√3
so interval 
x∈(-2/√3,2/√3)
5 0
3 years ago
Find the missing side of the triangle shown below, if the perimeter is 79.6.
astraxan [27]

Answer:

There is no picture

Step-by-step explanation:

7 0
2 years ago
Plz help this is variable and algebraic expressions
Blizzard [7]

Answer:

1.) D

2.) B

3.)

a.) 7x-34

b.) x (division symbol) 45 + 6

4.)

a.) x decreased by 216

b.) the quotient of 15 and x

4 0
3 years ago
What are the solutions of x² + 6x - 16 = 0?
AveGali [126]

Step-by-step explanation:

x_{1,\:2}=\frac{-6\pm \sqrt{6^2-4\cdot \:1\cdot \left(-16\right)}}{2\cdot \:1}\\\sqrt{6^2-4\cdot \:1\cdot \left(-16\right)}\\\sqrt{6^2+64}\\\sqrt{36+64}\\\sqrt{100}\\\sqrt{10^2}\\=10\\x_1=\frac{-6+10}{2\cdot \:1},\:x_2=\frac{-6-10}{2\cdot \:1}\\\\\bold{x_1:2}\\\frac{-6+10}{2\cdot \:1}\\\frac{4}{2\cdot \:1}\\\frac{4}{2}\\=2\\\\\bold{x_2:-8}\\\frac{-6-10}{2\cdot \:1}\\\frac{-16}{2\cdot \:1}\\\frac{-16}{2}\\-\frac{16}{2}\\=-8

Answer:

x₁ = 2

x₂ = -8

6 0
8 months ago
Plz helppp I don’t understand
Dmitrij [34]

Answer:

5+x=-4, =9

Step-by-step explanation:

5+x=-4 Write equation

-5    -5 Subtract 5 from both sides to isolate x

 +x=-9

4 0
3 years ago
Other questions:
  • If the lake is 60 miles away and Rene is driving at 40 miles a hour the whole time how long will it take for her to get to the l
    13·2 answers
  • Okay Google what is the reciprocal of 6/5
    14·1 answer
  • What is 20% of 80. ​
    15·1 answer
  • The International Average Salary Income Database provides a comparison of average salaries for various professions. The data are
    11·1 answer
  • Which of the following statements is true
    13·1 answer
  • 52 thousandths in scientific notation
    11·1 answer
  • Through: (-3,2) and (0, -3)
    12·1 answer
  • A square dance floor has a side of 51/3 yards. What is the area of the dance floor
    9·2 answers
  • HELP!!! ANSWER QUICKLY PLS!!!! ( PURPLE DOT IS NOT THE ANSWER)
    15·2 answers
  • PLEASE HELP ME PLEaSE
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!