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shtirl [24]
3 years ago
11

A researcher reports that there is no consistent relationship between grade point average and the number of hours spent studying

for college students. The correlation between grade point average and the number of hours studying is an example of a positive correlation. a negative correlation. a correlation near zero. a correlation near one.
Mathematics
1 answer:
lora16 [44]3 years ago
7 0

Answer:

a correlation near 0

Step-by-step explanation:

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Could someone please help me with this? I would mark you as Brainliest:)
Hunter-Best [27]

Answer:

a) The table of values represents the ordered pairs formed by the elements of the sequence (a_{i}) (range) and their respective indexes (i) (domain):

i         a_{i}

1         6

2        11

3        16

4        21

5        26

b) The algebraic expression for the general term of the sequence is a(i) = 6 + 5\cdot (i - 1).

c) The 25th term in the sequence is 126.

Step-by-step explanation:

a) Make a table of values for the sequence 6, 11, 16, 21, 26, ...

The table of values represents the ordered pairs formed by the elements of the sequence (a_{i}) (range) and their respective indexes (i) (domain):

i         a_{i}

1         6

2        11

3        16

4        21

5        26

b) Based on the table of values, we notice a constant difference between two consecutive elements of the sequence, a characteristic of arithmetic series, whose form is:

a(i) = a_{1} + r\cdot (i - 1) (1)

Where:

a_{1} - First element of the sequence.

r - Arithmetic difference.

i - Index.

If we know that a_{1} = 6 and r = 5, then the algebraic expression for the general term of the sequence is:

a(i) = 6 + 5\cdot (i - 1)

c) If we know that a(i) = 6 + 5\cdot (i - 1) and i = 25, then the 25th term in the sequence is:

a(25) = 6 + 5\cdot (25 - 1)

a(25) = 126

The 25th term in the sequence is 126.

7 0
3 years ago
What is the first step for solving the inequality 3y+14=44
uranmaximum [27]
3y+14=44

Answer: First step is to subtract 14 from each side

3y = 30 (divide each side by 3)
y = 30/3, y = 10
7 0
3 years ago
How to find the median
KengaRu [80]

<em>We </em><em>can </em><em>find </em><em>the </em><em>median </em><em>by </em><em>using </em><em>the </em><em>formula:</em>

<em>(</em><em>N+</em><em>1</em><em>/</em><em>2</em><em>)</em><em> </em><em>th </em><em>item</em>

<em>For </em><em>example:</em>

<em>Given </em><em>data:</em><em> </em><em>4</em><em>,</em><em>6</em><em>,</em><em>3</em><em>,</em><em>5</em><em>,</em><em>7</em>

<em>We </em><em>have </em><em>to </em><em>arrange </em><em>the </em><em>data </em><em>into </em><em>ascending</em><em> </em><em>order</em><em>:</em>

<em>=</em><em>3</em><em>,</em><em>4</em><em>,</em><em>5</em><em>,</em><em>6</em><em>,</em><em>7</em>

<em>N(</em><em>total </em><em>no </em><em>of </em><em>items)</em><em>=</em><em>5</em>

<em>Now,</em>

<em>Median=</em><em>(</em><em>N+</em><em>1</em><em>/</em><em>2</em><em>)</em><em>th </em><em>item</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em>(</em><em>5</em><em>+</em><em>1</em><em>/</em><em>2</em><em>)</em><em> </em><em>th </em><em>item</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em>(</em><em>6</em><em>/</em><em>2</em><em>)</em><em> </em><em>th </em><em>item</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em> </em><em>3</em><em>r</em><em>d</em><em> </em><em>item</em>

<em>Median=</em><em>5</em>

<em>Hope </em><em>it</em><em> </em><em>helps</em>

<em>Good </em><em>luck</em><em> on</em><em> your</em><em> assignment</em>

3 0
3 years ago
Read 2 more answers
Express the series using sigma notation 5 - 10 + 20 - 40 + 80 - ...
Ilia_Sergeevich [38]

Step-by-step explanation:

I think 160! I don't know it true or not

8 0
3 years ago
What type of conic section is represented by the parametric equations below? X=3cos(t)-1 y=3sin(t)+4
Andrei [34K]

Answer:

Circle

Step-by-step explanation:

Examples of conic sections are the circle, the ellipse, the parabola and the hyperbola. Parametric equations are used to express the x and y variables in terms of a less complicated manner using a third variable (t or θ).

The parametric equation for a circle with an equation (x-h)^2+(y-k)^2=r^2 is given by:

x=rcos(t)+h, y=rsin(t)+k

where r is the radius of the circle and (h, k) is the center of the circle.

A conic section with a parametric equations X=3cos(t)-1, y=3sin(t)+4 is a circle with center at (-1, 4) and radius of 3. The equation of the circle is:

(x + 1)² + (y - 4)² = 3²

3 0
3 years ago
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