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3 years ago

Often, anomalous objects are known as _____, since on a scatter plot of the data, they lie far away from other data points.

Mathematics

1 answer:

ycow [4]3 years ago

4 0

Answer:

<em>outliers</em>

Step-by-step explanation:

An outlier is a data point that is significantly different from other observations. An outlier might be due to inconsistency in measurements, or due to an error introduced into the experiment. Outliers cans lie extremely high or low of other observation in statistics, and they usually create a big problem for proper analysis.

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You have to pay $32.75 for an item after a 25% markup. What was the original price?

stepan [7]

It should be around 24.56 i rounded tho

7 0

3 years ago

Select a counter-example that makes the conclusion false.

Softa [21]

A counter-example could be

There are more than 3 marbles in the bag, and the other ones are red.

Hope this helps!

4 0

3 years ago

Derive the equation of the parabola with a focus at (0, −4) and a directrix of y = 4.

CaHeK987 [17]

<u>Answer:</u>

$y=-\frac{1}{16} x^2$

<u>Step-by-step explanation:</u>

Equation of parabola with focus at (0,-4) and directrix is $y=4$ .

We know that parabola is the locus of all the points such that the distance from fixed point on the parabola to fixed line directrix is the same.

The parabola is opening downwards.

Let any point on parabola is (x,y).

Distance from focus(0,-4) to (x,y) = $\sqrt{(x-0)^2+(y-(-4))^2}=|y-4|$

$\sqrt{(x-0)^2+(y-+4)^2}=|y-4|$

$(x-0)^2+(y+4)^2=(y-4)^2$

$(x)^2+(y+4)^2=(y-4)^2$

$x^2+(y^2+4y+4y+16)=y^2-4y-4y+16$

$x^2+y^2+8y+16=y^2-8y+16$

$x^2+16y^2=0$

$16y=-x^2$

$y=-\frac{1}{16} x^2$

6 0

2 years ago

Students in at six grade class are raising money for end-of-the-year camping trip so far they have raise $240 this is 2/5 of the

spayn [35]

Answer:

96 $

Step-by-step explanation:

$\frac{2}{5}$

$2 \times 240$

$480 \div 5$

the answer is 96$

6 0

2 years ago

Read 2 more answers

(URGENT) Madelina wants to make a prediction using a linear model with a correlation coefficient of 0.55.

alekssr [168]

Answer:

<h2>Her prediction will be somewhat likely to be close to the actual value.</h2>

Step-by-step explanation:

A correlation coefficient of 0.55 implies a weak positive correlation, because it's close to 0.50. Remember that strong correlations are 1 or -1, positive or negative, and the middle of the interval represents no correlation.

Having said that, 0.55 indicates some correlation, but weak. Therefore, the right answer is C.

3 0

2 years ago