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
d1i1m1o1n [39]
3 years ago
7

If the correlation coefficient in an ordinary least squares regression = 1.00, then A. all the data points must fall exactly on

a straight line with a positive slope. B. all the data points must fall exactly on a straight line with a slope that equals 1.00. C. all the data points must fall exactly on a horizontal straight line with a zero slope. D. all the data points must fall exactly on a straight line with a negative slope.
Mathematics
1 answer:
Hatshy [7]3 years ago
8 0

Answer: Option A is correct.

Step-by-step explanation:

  • The correlation coefficient(r) is a statistical measure that computes the strength of the relationship between two variables.

It lies between -1 and 1.

If the correlation coefficient in an ordinary least squares regression = 1.00.

That indicates that there is a perfect relationship between the variables.

i.e. all the data points must fall exactly on a straight line with a positive slope. .

[when r is positive, the slope of the line is positive].

i.e. option A is correct.

You might be interested in
Last week, Thomas jogged a total of 35.209 miles on his treadmill. Two weeks ago, he jogged 38.074 miles.
Sonja [21]

Answer:

2.865

Step-by-step explanation:

pls rate five stars, thanks  :)

6 0
3 years ago
Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar. Chris is playing a
alisha [4.7K]

Let's call the aces h, d, c, s for hearts, diamonds, clubs and spades. So, h, d are red and [ted] c, s[/tex] are black.

Since the first card is replaced, the two picks are identical. This means that the sample space is given by all the possible couple

(x,y)\, x, y \in \{h,d,c,s\}

There are 16 such couples (we have four choices for the first card, and the same four choices for the second card). Now let's compute the odds in our favour to deduce the probability of winning:

If we want a player to draw two card of the same colour, the following couples are good:

(h,h),\ (h,d),\ (d,h),\ (d,d),\ (c,c),\ (c,s),\ (s,c),\ (s,s)

so 8 possible couples over 16. This means that the probability that a player draws two cards of the same color is 8/16 = 1/2.

Similarly, the probability of drawing a red ace first and then a black ace is represented by the following couples:

(h,c),\ (h,s),\ (d,c),\ (d,s)

which are 4 over the same 16 as above, thus leading to a probability of 4/16 = 1/4.

4 0
3 years ago
Read 2 more answers
Equation for the monthly mortgage payment
Archy [21]
In the standardized calculations used in the United States, c is given by the formula<span>: For example, for a home loan of $200,000 with a fixed yearly interest rate of 6.5% for 30 years, the principal is , the </span>monthly<span> interest rate is , the number of </span>monthly payments<span> is , the fixed </span>monthly payment<span> equals $1,264.14.</span>
7 0
3 years ago
A fisherman can row upstream at 1 mph and downstream at 4 mph he started rowing upstream until he got tired and then rowed downs
Morgarella [4.7K]

Answer:the total trip, and I should be right, was 7 miles. He rowed up for 3 hours, and back for 1.

8 0
3 years ago
The probability of having a winning raffle ticket is 20%. If you bought 50 tickets, how many winning tickets should you expect t
dem82 [27]
20% can be represented as 1/5.

Therefore you're expected to win 1 ticket out of every 5 you purchase. So if you purchase 50 you can expect to win 10 tickets. Therefore the answer is C.
5 0
3 years ago
Other questions:
  • Rewrite as a simplified fraction<br> 2.267 = ?
    10·2 answers
  • Wright each fraction as a decimal <br> 8 24/25
    7·2 answers
  • How do you do this? I am really confused.
    6·2 answers
  • Follow the steps to solve for the variable in this two-step equation:
    12·2 answers
  • X 20) Becca has 3 times more games than Susan has. Write an algebraic
    6·1 answer
  • The crafting club sold art calendars for a recent fundraiser. The table below lists the number of calendars sold by each member
    14·1 answer
  • Someone please helpp
    13·1 answer
  • PLEASE ANSWER!!!
    14·2 answers
  • Solve the following question
    9·1 answer
  • After Ken Dial had his "‘aha’ moment" (line 41), he
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!