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2 years ago

SOLOVE THIS QUESTION PLSS

Mathematics

1 answer:

pantera1 [17]2 years ago

5 0

Answer:

positive its 18 feet

Step-by-step explanation:

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The point where the three medians of a triangle intersect

lubasha [3.4K]

the centroid i think

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3 years ago

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Please help me out here guys I would really appreciate it (struggling hard)

Radda [10]

Answer:

3/15 is pauls probability simplified to 1/5

7/ 14 is Kim's probability simplified to 1/2

so, the overall probability would be 1/10

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3 years ago

The following data show the brand, price ($), and the overall score for 6 stereo headphones that were tested by Consumer Reports

Olenka [21]

Complete Question

The complete question is shown on the first uploaded image

Answer:

SST = 1800

SSR = 1512.376

SSE = 287.624

coefficient of determination is $r^2 \approx 0.8402$

What this is telling us is that 84.02% variation in dependent variable y can be fully explained by variation in the independent variable x

The correlation coefficient is $r = 0.917$

Step-by-step explanation:

The table shown the calculated mean is shown on the second uploaded image

Let first define some term

SST (sum of squares total) : This is the difference between the noted dependent variable and the mean of this noted dependent variable

SSR(sum of squared residuals) : this can defined as a predicted shift from the actual observed values of the data

SSE (sum of squared estimate of errors): this can be defined as the sum of the square difference between the observed value and its mean

From the table

$SST = SS_{yy} = 1800$

$SSR = \frac{SS^2_{xy}}{SS_{xx}} = \frac{4755^2}{14950} = 1512.376$

$SSE =SST-SSR$

$=1800 - 1512.376$

$= 287.62$

The coefficient of determination is mathematically represented as

$r^2 = \frac{SSR}{SST}$

$= 1-\frac{SSE}{SST}$

$r^2= 1-\frac{287.6237}{1800}$

$r^2 \approx 0.8402$

The correlation coefficient is mathematically represented as

$r = \pm\sqrt{r^2}$

Substituting values

$r = \sqrt{0.84020}$

$r = 0.917$

this value is + because the value of the coefficient of x in estimated regression equation( $24.9 + 0.301x,$ ) is positive

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3 years ago

I need help ASAP plzzzzzzzzzzzzz

n200080 [17]

Answer:

3/4

Step-by-step explanation:

Let's say that r is the radius of the large circle or the diameter of the small circle.

Area of the big circle is $\pi r^{2}$ .

Area of the small circle is $\pi \frac{r}{2} ^{2} = \pi \frac{r^{2}}{4}$ .

The ratio of these 2 circles is 1/4 (calculation in the comments).

So the shaded part represent 1 - 1/4 = 3/4.

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3 years ago

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mel-nik [20]

ishaan could literally be any age because we still dont know christophers age

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3 years ago