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3 years ago

WHAT IS 3+3=ANSWER NEEDED

Mathematics

1 answer:

VikaD [51]3 years ago

5 0

Answer:

i think its a uhh a carrot?? no the answer is 6

Step-by-step explanation:

beetlejuice

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The distribution of the test statistic for analysis of variance is the F-distribution. true or false

lubasha [3.4K]

Answer:

True. See explanation below

Step-by-step explanation:

Previous concepts

Analysis of variance (ANOVA) "is used to analyze the differences among group means in a sample".

The sum of squares "is the sum of the square of variation, where variation is defined as the spread between each individual value and the grand mean"

If we assume that we have $k$ groups and on each group from $j=1,\dots,k$ we have $k$ individuals on each group we can define the following formulas of variation:

$SS_{total}=\sum_{j=1}^p \sum_{i=1}^{n_j} (x_{ij}-\bar x)^2$

$SS_{between=Treatment}=SS_{model}=\sum_{j=1}^p n_j (\bar x_{j}-\bar x)^2$

$SS_{within}=SS_{error}=\sum_{j=1}^p \sum_{i=1}^{n_j} (x_{ij}-\bar x_j)^2$

And we have this property

$SST=SS_{between}+SS_{within}$

The degrees of freedom for the numerator on this case is given by $df_{num}=k-1$ where k represent the number of groups.

The degrees of freedom for the denominator on this case is given by $df_{den}=df_{between}=N-k$ .

And the total degrees of freedom would be $df=N-1$

And the we can find the F statistic $F=\frac{MSR}{MSE}$

8 0

4 years ago

What is 24 – ( n + 3 ) ÷ 2 when n = ?

IrinaVladis [17]

Answer:

16 or 8

Step-by-step explanation:

I'm not sure if this are right

6 0

3 years ago

What is the image of (3,9) after a dilation by a scale factor of 3 centered at the origin

Sav [38]

Answer:

(9, 27 )

Step-by-step explanation:

Since the dilatation is centred at the origin, multiply each of the coordinates of the original point by the scale factor of 3

(3, 9 ) → (3(3), 3(9)) → (9, 27 )

7 0

4 years ago

Read 2 more answers

What is the quotient of Negative 27. 374 divided by 7. 5 â€""3. 65 â€""0. 365 0. 365 3. 65.

Galina-37 [17]

The quotient of 27.374 divided by 7.5 is; <em><u>3.65</u></em>

We want to find the quotient of 27.374/7.5.

Now, to make this easy, let us find a way to write the decimals as whole numbers.

Thus;

27.374 = 27374 × 1/1000

Similarly, 7.5 = 75 × 1/10

Thus;

27.374/7.5 = (27374 × 1/1000)/(75 × 1/10)

>> (27374/75) × (10/1000)

>> 365 × 0.01

>> 3.65

Read more about finding quotient of decimal division at; brainly.com/question/408413

6 0

3 years ago

It takes 60 minutes to make 2000 copies on an old copy machine. The newer copier works with the old copier to create 2000 sheets

Cerrena [4.2K]

The new copier can create 2000 copies in 20 minutes.

Step-by-step explanation:

Given,

It takes 60 minutes to make 2000 copies by old printer and 15 minutes to made x number of copies, therefore, using proportion

$60:2000::15:x$

Product of mean = Product of extreme

$2000*15=60*x\\30000=60x\\60x=30000$

Dividing both sides by 60

$\frac{60x}{60}=\frac{30000}{60}\\x=500$

As the new copier is working with old copier, therefore,

Copies made by new printer = 2000 - 500 = 1500

New copier can make 1500 copies in 15 minutes and 2000 copies in x minutes, using proportion

$1500:15::2000:x\\1500*x=15*2000\\1500x=30000$

Dividing both sides by 1500;

$\frac{1500x}{1500}=\frac{30000}{1500}\\x=20$

The new copier can create 2000 copies in 20 minutes.

Keywords: ratio, proportion

Learn more about proportions at:

#LearnwithBrainly

5 0

4 years ago