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storchak [24]
3 years ago
11

A local college student will be randomly selected to attend a leadership conference in Washington, D.C. There are 2110 local col

lege students, of which 40% are male. 610 of the college students are graduate students, and half of the graduate students are female. Which of the following best represents the probability that the selected college student will be a male student or a graduate student
Mathematics
1 answer:
Lemur [1.5K]3 years ago
6 0
The Apex answer is 54%. Hope this helps! ^ your answer would have been right but you forgot to multiply 25% with the second half of the asked question.
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A linear regression is done on data the line of best fit is y= 1.25x-6.25. What is the residual for the point (1,1)?
Damm [24]

Answer:

6

Step-by-step explanation:

Find the predicted y value when x=1:

\hat{y}=1.25x-6.25\\\hat{y}=1.25(1)-6.25\\\hat{y}=1.25-6.25\\\hat{y}=-5

Find the residual:

\text{Residual}=\text{Actual Value}-\text{Predicted Value}\\\text{Residual}=y-\hat{y}\\\text{Residual}=1-(-5)\\\text{Residual}=1+5\\\text{Residual}=6

Because our residual is positive, this is an indicator that our predicted y value is too low.

6 0
2 years ago
What are TWO different ways you know when you are finished dividing?
vfiekz [6]
You know you are finished dividing when you can no longer simply & when you plug it back in to check the answer
7 0
3 years ago
Please help will brainlist if right
prisoha [69]

Answer:

12. B

13 A

18 B

19 B

Step-by-step explanation:

12. The solutions of the quadratic is the roots, so 0 = x^2 -7x -30 = (x-10)(x+3). For this to be satisfied, either x-10 = 0 -> x = 10 and x + 3 = 0 -> x = -3

13. Either x = 0 or x+8 = 0 -> x =-8 for this to be true

18. The GCF of 2, 6, and 20 is 2. No other number satisfies being a common factor.

19. The product of the solutions of the equation is the (constant/leading coefficient) in the quadratic, which is -8/1 = -8

I hope this helps! :)

4 0
3 years ago
Read 2 more answers
What is the reciprocal of -2 2/3
BaLLatris [955]

Answer:

-3/8

Step-by-step explanation:

First rewrite -2 2/3 as an improper fraction:  -8/3

Now invert this result:  -3/8

This is the reciprocal of -2 2/3.

3 0
3 years ago
Read 2 more answers
Solve the percent equations 45% of 26=
lara31 [8.8K]
45% = .45
.45 x 26 = 11.7
4 0
3 years ago
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