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abruzzese [7]
3 years ago
6

The scatter plot represents the purchase prices and selling prices of X-ray machines made by five different manufacturers. Which

of the following points show errors of prediction or residuals?
Answer Choices :
Points (14, 25) and (15, 25)
Points (15, 25) and (18, 26)
Points (14, 25) and (16, 25)
Points (12, 24) and (18, 26)
Mathematics
2 answers:
BARSIC [14]3 years ago
6 0
The points on the scatter plot show the different predictions. The straight line drawn is called the line of regression. Errors in prediction for each point can be determined by drawing a vertical line from the point to the line of regression. As seen in the image, all of the prediction points are found on the line except for points (14,25) and (16,25). Therefore, these points contain errors in prediction.
djverab [1.8K]3 years ago
3 0

Answer:

As seen in the image, all of the prediction points are found on the line except for points (14,25) and (16,25). Therefore, these points contain errors in prediction.

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pav-90 [236]
24/100 simplified is 6/25
4 0
3 years ago
Consider the continuous random variable x, which has a uniform distribution over the interval from 20 to 28. refer to exhibit 6-
tatyana61 [14]
(25 -21)/(28 -20) = 4/8 = 1/2

Your probability is 1/2.
7 0
3 years ago
The table below represents a function. Which of the following equations could be its function rule?
worty [1.4K]

Answer:

y=2x-2 is the required equation.

Therefore, the second option is true.

Step-by-step explanation:

We know that the slope-intercept form of the line equation of a linear function is given by

y=mx+b

where m is the slope and b is the y-intercept

Taking two points (0, -2) and (1, 0) from the table to determine the slope using the formula

\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}

\left(x_1,\:y_1\right)=\left(0,\:-2\right),\:\left(x_2,\:y_2\right)=\left(1,\:0\right)

m=\frac{0-\left(-2\right)}{1-0}

m=2

substituting the point (0, -2) and the slope m=2 in the slope-intercept form to determine the y-intercept i.e. 'b'.

y=mx+b

-2 = 2(0)+b

-2=0+b

b=-2

Now, substituting the values of m=2 and b=-2 in the slope-intercept form to determine the equation of a linear function

y=mx+b

y=2x+(-2)

y=2x-2

Thus, y=2x-2 is the required equation.

Therefore, the second option is true.

3 0
2 years ago
What is the greatest possible product of a 3-digit number and a 1 digit number
saw5 [17]
8,991 which is the product of 999 times 9
8 0
3 years ago
Plz help ILL GIVE BRAINLIEST
vovangra [49]

Answer:

Step-by-step explanation:

I think in this question we have to find slope, if so, its y = 10x.

to find the slope just pick two numbers, i chose (2,20) and (7,70) and then put them in the slope formula y2-y1/x2-x1. That gave me 10. I hope its correct. :)

7 0
3 years ago
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