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Vlad [161]
4 years ago
5

Determine whether the value is a discrete random​ variable, continuous random​ variable, or not a random variable. a. The amount

of snowfall in December in City A b. The number of bald eagles in a country c. The gender of college students d. The number of statistics students now reading a book e. The number of people with blood type A in a random sample of 18 people f. The number of points scored during a basketball game
Mathematics
1 answer:
mart [117]4 years ago
3 0

Answer:

a) a continuous random variable; b) a discrete random variable; c) not a random variable; d) a discrete random variable; e) a discrete random variable; f) a discrete random variable

Step-by-step explanation:

A continuous random variable is one that can take multiple values between whole number values; for instance, fractions and decimals.  Snowfall is a continuous random variable.

A discrete random variable is one that can only take whole number values.  The number of bald eagles, the number of students reading a book, the number of people with blood type A, and the number of points scored in a  basketball game are discrete random variables.

Gender of students is not a numerical value; this is not a random variable.

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The equation of the hyperbola that has a center at ( 6 , 9 ) , a focus at ( 11 , 9 ) , and a vertex at ( 9 , 9 ) (x−C)^2/A^2−(y−
MrMuchimi

Answer:

A=-3

C=6

B=4

D=9

Step-by-step explanation:

From the question we are told that:

Center of hyperbola at ( 6 , 9 )

Focus of hyperbola at ( 11 , 9 )

Vertex of hyperbola at ( 9 , 9)

Equation of hyperbola \frac{(x-C)^2}{A^2} -\frac{(y-D)^2}{B^2}=1

Generally the C and D of the hyperbola equation is mathematically given by

Centers (6,9)

C=6

D=9

Generally the A and B a of the hyperbola equation is mathematically given by

 A=x_c-x_v

 A=6-9

 A=-3

 C'=x_c-x_f

 C'=6-11

 C'=-5

Therefore with Center,Focus ,Vertex on the same line

 B^2=C'^2-A^2

 B^2=(-5^2)-(-3^2)^2

 B^2=(25)-(9)

 B^2=16

 B=4

3 0
3 years ago
Fill in the missing terms.
san4es73 [151]

a) 2

b) 2

c) 6

d) 15

e) 2

f) 3

6 0
3 years ago
Are the ratios 2:3 and 12:18 equivalent?
lesya692 [45]

Answer: Yes

Step-by-step explanation:

Yes, they are, because if you multiply 2*6=12 and 3*6=18, so here we multiplied both 2 and 3 by the same number (6) and we got the same result 12:18. This method also works with fractions.

6 0
3 years ago
Read 2 more answers
How do you do this question
seropon [69]

a = \sqrt{65} - 9

a = 8.06 - 9

a = -1.06


b = \sqrt{50} - 8

b = 7.07 - 8

b = -1.07


A. is not true.

B. is true.

C. is not true.

D. is not true.


Hope it helped


BioTeacher101

7 0
3 years ago
Read 2 more answers
Divide -3x3 - 4x2 + 4x +3 by x-2
kobusy [5.1K]

Answer:

-3x² - 10x - 16 r. \dfrac{-29}{x-2}

Step-by-step explanation:

You can easily do this through synthetic division:

First step is to get all the numeric coefficients of the expression and write them down. Don't forget to bring their signs along with them.

-3x³ - 4x² + 4x +3

    | -3     -4     +4    +3

    |______________

Next we find the root that is associated with the divisor:

x  - 2 = 0

x = 2

We use this and put it outside:

 2   | -3     -4     +4    +3

      |______________

Okay now we bring down the first coefficient:

  2  | -3     -4     +4    +3

      |______________

        -3

Then we multiply it by the root and put the product under the next coefficient:

2  x - 3 = -6

2  | -3     -4     +4    +3

    |<u>         -6                  </u>

      -3

Then we add them:

2  | -3     -4     +4    +3

    |<u>         -6                  </u>

      -3    -10

Do the same steps until the end:

2  | -3     -4     +4       +3

    |<u>         -6      -20     -32              </u>

      -3     -10     -16     -29

Now that you have that, remember that since the divisor is in the 1st degree, quotient will have a degree will be one degree below as well.

-3x² - 10x - 26

Your last coefficient is going to be your remainder:

-3x² - 10x - 16 r. \dfrac{-29}{x-2}

3 0
4 years ago
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