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MaRussiya [10]
3 years ago
6

The regression equation below relates the scores students in an advanced statistics course received for homework completed and f

or the subsequent midterm exam. Homework scores are based on assignments that preceded the exam. The maximum homework score a student could obtain was 500 and the maximum midterm score was 350. The regression line that was obtained is given by y=−84.4+0.91x . If a student had a homework score of 420 , the midterm score would be predicted to be (rounded to an integer ):a. 298b. 378c. 336d. None of the answer choices is correct
Mathematics
1 answer:
serg [7]3 years ago
7 0

Answer: d.) None of the answer choices is correct

Step-by-step explanation:

The homework score is an independent variable (known) and on the x-axis, while the midterm exam is the dependent variable, so it's on the y-axis

y = 0.91x - 94.4; and x=420

Substitute x as 420 into the equation.

y = 382.2 - 94.4 = 287.8, or approximately 288.

And this value isn't in the options above.

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What is negative 5 and 3/4 as a fraction
Alinara [238K]

Answer:

-23/4

Step-by-step explanation:

-5\frac{3}{5}

-\frac{5x4+3}{4}

-\frac{20+3}{4}

-\frac{23}{4}

3 0
3 years ago
What is probability that the total number of dots appearing on top is 5?
stira [4]
Only 1,4 2,3 3,2 4,1
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the answer is 1/9
7 0
3 years ago
Follow this link to view Juan's work. Critique Juan's work by justifying correct solutions and by explaining any errors he made
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4 0
3 years ago
The diameter of a circle is 15 ft. Find its circumference in terms of \piπ.
Paladinen [302]
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7 0
2 years ago
Point J (-4, -6) and point K (4, 4) are located on a coordinate grid. Which measurement is closest to the distance between point
shepuryov [24]

Answer:

The points are sqrt(164) or 2sqrt(41) units apart.

Explanation:

You didn't provide the options in your question. But to find the distance, you need to use the distance formula.

d=sqrt((y2-y1)^2 + (x2-x1)^2)

d is the distance, and (x1, y1) and (x2, y2) are the points.

Use point J (-4,-6) for (x1,y1) and point K (4,4) for (x2, y2).

d=sqrt((4-(-6))^2 + (4-(-4))^2)

 =sqrt(10^2 + 8^2)

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 =sqrt(164)=2sqrt(41)

You can compare this to the answer options and find the closest. Hope I could help! :)

3 0
3 years ago
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