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Juliette [100K]
3 years ago
10

What are the relative frequencies, to the nearest hundredth, of the rows of the two-way table? Drag and drop the values into the

boxes to show the relative frequencies.

Mathematics
1 answer:
quester [9]3 years ago
8 0

Answer:

.25             .75

.44            .56

Step-by-step explanation:

To find the relative frequency, we take the part over the total.

Since this  is a relative frequency table, the total for each row is 1

Group 1 A  = 15/ (15+45) = 15/60 = .25

Group 1 B = 45/(15+45) = 45/60 = .75

Group 2 A = 20 /(20+25) = 20/45 =.44

Group 2B = 25/(20+25) = 25/45 =.56

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Explain how to determine the x- and y- intercepts of a line from a given equation in y = mx + b form.
NISA [10]

Answer:

Step-by-step explanation:

x-intercept:  Set y = 0 and solve for x:

 0 = mx + b, or mx = -b, or x = -b/m.  x-intercept is then (-b/m, 0)

y-intercept:  Set x = 0 and solve for y:  y = m(0) + b, or y = b.  y-intercept is then

 (0, b).

3 0
3 years ago
Use matrices and elementary row to solve the following system:
LiRa [457]

I assume the first equation is supposed to be

5x-3y+2z=13

and not

5x-3x+2x=4x=13

As an augmented matrix, this system is given by

\left[\begin{array}{ccc|c}5&-3&2&13\\2&-1&-3&1\\4&-2&4&12\end{array}\right]

Multiply through row 3 by 1/2:

\left[\begin{array}{ccc|c}5&-3&2&13\\2&-1&-3&1\\2&-1&2&6\end{array}\right]

Add -1(row 2) to row 3:

\left[\begin{array}{ccc|c}5&-3&2&13\\2&-1&-3&1\\0&0&5&5\end{array}\right]

Multiply through row 3 by 1/5:

\left[\begin{array}{ccc|c}5&-3&2&13\\2&-1&-3&1\\0&0&1&1\end{array}\right]

Add -2(row 3) to row 1, and add 3(row 3) to row 2:

\left[\begin{array}{ccc|c}5&-3&0&11\\2&-1&0&4\\0&0&1&1\end{array}\right]

Add -3(row 2) to row 1:

\left[\begin{array}{ccc|c}-1&0&0&-1\\2&-1&0&4\\0&0&1&1\end{array}\right]

Multiply through row 1 by -1:

\left[\begin{array}{ccc|c}1&0&0&1\\2&-1&0&4\\0&0&1&1\end{array}\right]

Add -2(row 1) to row 2:

\left[\begin{array}{ccc|c}1&0&0&1\\0&-1&0&2\\0&0&1&1\end{array}\right]

Multipy through row 2 by -1:

\left[\begin{array}{ccc|c}1&0&0&1\\0&1&0&-2\\0&0&1&1\end{array}\right]

The solution to the system is then

\boxed{x=1,y=-2,z=1}

5 0
3 years ago
Adiba bought 3 pizzas for her sleepover. 13 slices were eaten. How much pizza is remaining if each pizza was cut into 8 slices?
AleksandrR [38]

Answer:

11

Step-by-step explanation:

3*8=24

24-13=11

5 0
3 years ago
2. When there is a strong positive, how do the points look?
motikmotik

When there's a strong positive, the points are: B. Close together.

<h3>Strong Positive Relationship</h3>
  • On a scatter plot, if the data points are close together along the trend line sloping upwards, it means there's a strong positive correlation.
  • Strong positive correlation means the two variables change in the same direction.

Therefore, when there's a strong positive, the points are: B. Close together.

Learn more about strong positive relationship on:

brainly.com/question/15552860

5 0
3 years ago
1/2 x (48 divided by 6) - 2 + 5
IceJOKER [234]

Answer:

7

Step-by-step explanation:

1/2<u>(48/6)</u> - 2 + 5

<u>1/2(8)</u> - 2 + 5

<u>4 - 2</u> + 5

<u>2 + 5</u>

7

6 0
3 years ago
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