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LUCKY_DIMON [66]
3 years ago
7

Use the linear regression feature on a graphing calculator to find the correlation coefficient for the data. Round your answer t

o three decimal places.

Mathematics
1 answer:
Lerok [7]3 years ago
7 0

Answer:

0.9769

Step-by-step explanation:

Given the data :

X : 7.5, 9.9, 4.8, 9, 8.1, 1.7, 3.1

Y : 35, 6, 45, 18, 20, 89, 84

The Correlation Coefficient obtained by using a graphing calculator to model the data above is : 0.9769, this means a strong positive correlation exists between the two variables.

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Write the equation of the line fully simplified slope-intercept form.
mixer [17]

Answer:

y = -x + 8

Step-by-step explanation:

The equation can be written as;

y = mx + b

where b is the y-intercept

From the diagram , b= 8

y = mx + 8

To get m, substitute (8,0 ) into the equation

0 = 8x + 8

x = -8/8

x = -1

So the full equation is;

y = -x + 8

3 0
2 years ago
Simplify the following expression
pishuonlain [190]

Answer:

im pretty sure thats the answer

6 0
3 years ago
Which of the following has no solution?
Luba_88 [7]

Answer:

  see below

Step-by-step explanation:

Option 1: the two solution sets overlap at <em>x=1</em>.

Option 2: the two solution sets do not overlap; no solution.

Option 3: together, the two set describe <em>all real numbers</em>.

5 0
3 years ago
Keta sold tickets for her school play at $6 for students, and $9 for adults. She sold 15 adult tickets and made a sales total of
ss7ja [257]

Answer:

Let x be the number of tickets sold to adults and y the number sold to students:

x + y = 315. But we know that y was double x, then :

y = 2x

Plug the value of y (in the 1st equation) by 2x:

 x+ 2x = 315

3x = 315

and x = 105 (which is the number of tickets sold to adults

Read more on Brainly.com - brainly.com/question/4429543#readmore

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
What is the area of a circle with a radius of 10.2 feet? 10.2 ​
klasskru [66]
Answer:

326.85 ft^2

Explanation:

The area of a circle is A=πr2
If we substitute the value of 10.2 feet into this formula we get 326.85 ft^2
6 0
2 years ago
Read 2 more answers
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