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
Vedmedyk [2.9K]
3 years ago
13

10. Answer True or False for the following statements. If false, justify what would make the statement true. a. If the least-squ

ares equation relating the independent variable x and the dependent variable y for a given problem is y = 2x + 5, then an increase of 1 unit in x is associated with an increase of 2 units in y. b. If your computed correlation coefficient is r = +1.2, then you have better than a perfect positive correlation. c. A student might expect that there is a positive correlation between the age of his or her laptop and its resale value. d. In simple regression analysis, if the slope of the line is positive, then there is a positive correlation between the dependent variable y and the independent variable x. e. If there is no correlation between the independent and dependent variables, then the value of the correlation coefficient must be –1.
Mathematics
1 answer:
Free_Kalibri [48]3 years ago
7 0

Answer:

a) TRUE

b) FALSE

c)  FALSE

d) TRUE

e) FALSE

Step-by-step explanation:

a)

TRUE because the slope of the correlation line is 2  and this is the rate of change of y respect to x

b)

FALSE

The correlation coefficient r is always between -1 and 1, so it can never be greater than one

c)

FALSE

A student might expect that there is a positive correlation between the age of their laptop and its resale value only if after collecting a large enough sample of data that relates age of the student and price of resale of their laptop, he or she finds that there is a positive correlation coefficient r>0

d)

TRUE

If there is a positive correlation, then the greater the x, the greater the y

e)

FALSE

If there is no correlation between the independent and dependent variables, then the value of the correlation coefficient must be 0.

You might be interested in
Estimate: 9,210 - 88<br> A)9100<br> B)8900<br> C)9000<br> D)9200
Romashka [77]

Answer:

A

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Hi if anyone wants points I will be asking easy questions<br><br> which is greater: 34.653 or 3.4653
Gekata [30.6K]

Answer:

34.653 because the number is bigger.

3 0
3 years ago
Read 2 more answers
All of the following are true statements except _____.
shutvik [7]

\qquad \qquad\huge \underline{\boxed{\sf Answer}}

The false (wrong) equation among them is : A

\qquad \sf  \dashrightarrow \:  | - 93|  =  - 93

Because any number in a modulus comes out to be positive.

4 0
2 years ago
Can someone plz help me with Algebra 2....... :) Will give Brainliest!!
Anarel [89]
Using logarithms property of log(x)+log(y)=log(xy)
so here, you can sum the equation to;
log((x+6)*(x-6))=2
so you can simply say that;
log_{8}((x+6)( x-6))=2
and by multiplying (x+6)*(x-6)
log_{8}(x^2-36)=2
and as you know also that;
a^{b}=c is same as log _{a}c=b
so you can simply state it as;
8^2=x^2-36&#10;64=x^2-36&#10;64+36=x^2&#10;x^2=100&#10;x=10
And you can check your work by substituting with 10 instead of x in the original function.
Hope this helps!
6 0
3 years ago
1 point
disa [49]

Answer:

A) WZ

Step-by-step explanation:

B,C, and D, come before RU

7 0
3 years ago
Other questions:
  • about 63,000 people voted this year. this is 20% more than the number of the people that voted last year. about how many people
    10·1 answer
  • Which should Bruce include in his list of liabilities? Choose ALL answers that are correct.
    6·1 answer
  • The power generated by an electrical circuit (in watts) as a function of its current x (in amperes) is modeled by: P(x)=-12x^2+1
    7·1 answer
  • How many solutions does the equation
    11·1 answer
  • In a diagram each line segment represents a bridge
    11·2 answers
  • A Pairs socks that normally sells for eight dollars is on sale for 15% off find the sale price of the socks then find the total
    5·1 answer
  • C++ the length of a rectangle is stored in a double variable named length, the width in one named width. write an expression who
    7·1 answer
  • Help me please don’t need an explanation just a quick answer
    8·1 answer
  • Name the polynomial based on its degree and number of terms. 2 - 11x^2 - 8x + 6x^2
    8·1 answer
  • Evaluate<br> A) <br><br> 3<br><br> B) <br><br> 2<br><br> C) <br><br> 5<br><br> D) <br><br> 0
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!