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Virty [35]
3 years ago
13

A proportional relationship is shown in the table below:

Mathematics
1 answer:
saul85 [17]3 years ago
3 0

Answer:

1.5

Step-by-step explanation:

In a table of a proportional relationship, there is always some number that you can multiply by the number in the first column to get the number in the second column for any row. This number is called the constant of proportionality. In the fruit juice example, the constant of proportionality is 0.4.

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Andrea is told that the means of two groups in a study were statistically significant. She knows the means and standard deviatio
salantis [7]

Answer:

Cohen's D

Step-by-step explanation:

Cohen's D is a statistic that measures effect size. It shows standardised difference between 2 means.

Effect size is defined as how large the effect of a something is or its magnitude.

Cohen's D works effectively when the sample is >50 (that is for large samples). However a correction factor can be used to make results from small samples more accurate

The formular for Cohen's D is:

D = (mean1 - mean2) ÷ (√({standard deviation1}^2 + {standard deviation 2}^2)/2)

This is the most appropriate method in the given scenario

5 0
3 years ago
There is a bag filled with 3 blue, 4 red and 5 green marbles.
lana [24]

Answer:

35/72

Step-by-step explanation:

8 0
2 years ago
A line passes through the points A(n,4) and B(6,8) and is parallel to y=2x-5. What is the value of n?​
Lady_Fox [76]

The slope of <em>y</em> = 2<em>x</em> - 5 is 2. Parallel lines have the same slope, so the slope of the line through the given points <em>A</em> and <em>B</em> is also 2. This means

(8 - 4) / (6 - <em>n</em>) = 2

Solve for <em>n</em> :

4 / (6 - <em>n</em>) = 2

4/2 = 6 - <em>n</em>

2 = 6 - <em>n</em>

<em>n</em> = 6 - 2

<em>n</em> = 4

4 0
3 years ago
An expression is shown below.
Sergio [31]

Answer:

<em><u>5</u></em>

Step-by-step explanation:

They do not have the common factor of x or y, so not them.

The GCF is 5, Both numbers can be divded by 5:

20x/5 = 4x

35y/5 = 7y

7 0
3 years ago
Read 2 more answers
A particular frozen yogurt has 75 cal in 2 ounces how many calories are in 8 ounces of the yogurt
Vesnalui [34]
Just divide 8 by 2 and you'll get 4
Each container is 2 ounces so do 75 times 4 and you'll get 300 calories
4 0
3 years ago
Read 2 more answers
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