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
egoroff_w [7]
3 years ago
15

What type of correlation is shown in the graph? no correlation positive negative

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
7 0
Answer:

Positive

- The dots on the graph are moving up in one direction, so that makes the graph positive.
You might be interested in
Is 2x+10 = -2(x-5) equals
faust18 [17]
First distribute -2 to both x and -5

-2(x) = -2x
-2(-5) = 10

2x + 10 = -2x + 10

False. 2x + 10 ≠ -2x + 10

False is your answer

hope this helps
3 0
3 years ago
Read 2 more answers
Should i do my teast for 12th grade calculus
Salsk061 [2.6K]

Answer:

attempt it, if it's too hard, sleep

that's what I would do lol

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
The attached Excel file 2013 NCAA BB Tournament shows the salaries paid to the coaches of 62 of the 68 teams in the 2013 NCAA ba
PSYCHO15rus [73]

The question is incomplete! Complete question along with answer and step by step explanation is provided below.

Question:

The attached Excel file 2013 NCAA BB Tournament shows the salaries paid to the coaches of 62 of the 68 teams in the 2013 NCAA basketball tournament (not all private schools report their coach's salaries). Consider these 62 salaries to be a sample from the population of salaries of all 346 NCAA Division I basketball coaches.

Question 1. Use the 62 salaries from the TOTAL PAY column to construct a 95% confidence interval for the mean salary of all basketball coaches in NCAA Division I.

xbar = $1,465,752

SD = $1,346,046.2

lower bound of confidence interval ________

upper bound of confidence interval _______

Question 2. Coach Mike Krzyzewski's high salary is an outlier and could be significantly affecting the confidence interval results. Remove Coach Krzyzewski's salary from the data and recalculate the 95% confidence interval using the remaining 61 salaries.

xbar = $1,371,191

SD = $1,130,666.5

lower bound of confidence interval _________

upper bound of confidence interval. ________

Answer:

Question 1:

lower bound of confidence interval = $1,124,027

upper bound of confidence interval = $1,807,477

Question 2:

lower bound of confidence interval = $1,081,512

upper bound of confidence interval = $1,660,870

Step-by-step explanation:

Question 1:

The sample mean salary of 62 couches is

 \bar{x} = 1,465,752

The standard deviation of mean salary is

 s = 1,346,046.2

The confidence interval for the mean salary of all basketball coaches is given by

 $ CI = \bar{x} \pm t_{\alpha/2}(\frac{s}{\sqrt{n} } ) $

Where \bar{x} is the sample mean, n is the sample size, s is the sample standard deviation and  t_{\alpha/2} is the t-score corresponding to a 95% confidence level.  

The t-score corresponding to a 95% confidence level is  

Significance level = α = 1 - 0.95 = 0.05/2 = 0.025  

Degree of freedom = n - 1 = 62 - 1 = 61

From the t-table at α = 0.025 and DoF = 61

t-score = 1.999

So the required 95% confidence interval is  

CI = \bar{x} \pm t_{\alpha/2}(\frac{s}{\sqrt{n} } ) \\\\CI = 1,465,752 \pm 1.999 \cdot (\frac{1,346,046.2}{\sqrt{62} } ) \\\\CI = 1,465,752 \pm 1.999 \cdot (170948.04 ) \\\\CI = 1,465,752 \pm 341,725 \\\\LCI = 1,465,752 - 341,725 = 1,124,027 \\\\UCI = 1,465,752 + 341,725 = 1,807,477\\\\

Question 2:

After removing the Coach Krzyzewski's salary from the data

The sample mean salary of 61 couches is

\bar{x} = 1,371,191

The standard deviation of the mean salary is

s = 1,130,666.5

The t-score corresponding to a 95% confidence level is  

Significance level = α = 1 - 0.95 = 0.05/2 = 0.025  

Degree of freedom = n - 1 = 61 - 1 = 60

From the t-table at α = 0.025 and DoF = 60

t-score = 2.001

So the required 95% confidence interval is  

CI = \bar{x} \pm t_{\alpha/2}(\frac{s}{\sqrt{n} } ) \\\\CI = 1,371,191 \pm 2.001 \cdot (\frac{1,130,666.5}{\sqrt{61} } ) \\\\CI = 1,371,191 \pm 2.001 \cdot (144767 ) \\\\CI = 1,371,191 \pm 289,678.8 \\\\LCI = 1,371,191 - 289,678.8 = 1,081,512 \\\\UCI = 1,371,191 + 289,678.8 = 1,660,870\\\\

6 0
3 years ago
How many sixties are in 244?
NeX [460]
There<u> four sixties </u> the remainder is 4
7 0
3 years ago
12x-6&gt;14x-2 graph it
Jet001 [13]

Answer: 12x-6=14x-2

We move all terms to the left:

12x-6-(14x-2)=0

We get rid of parentheses

12x-14x+2-6=0

We add all the numbers together, and all the variables

-2x-4=0

We move all terms containing x to the left, all other terms to the right

-2x=4

x=4/-2

x=-2

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • PLEASE ANSWER + BRAINLIEST !!!!
    12·2 answers
  • 1 half egual to what equivalent fraction with eight at the bottom....what the number is at the top
    5·1 answer
  • Simplify the following expression:<br> 3X(4-1) + (6+21)
    13·2 answers
  • 5.3 cm<br> 6.6 cm<br> Find the length of the Unknown leg of the right triangle
    6·2 answers
  • Berts's cab company charges $1.00 plus an additional $3.00 per mile for a ride. Madeline's caby company charges $3.00 plus an ad
    10·2 answers
  • How to do this cause I'm very lost
    15·1 answer
  • Which number line shows the graph of –3? A. number line from minus7 to 7 with point at minus4 B. number line from minus7 to 7 wi
    13·1 answer
  • 6,300,000,000 = 6.3 x 1,000,000,000
    7·2 answers
  • Please helpppppp I’m taking a test lol help
    10·1 answer
  • Find the location of Y, the midpoint of XZ X is located at (3,-9)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!