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3 years ago

Please do not send me p d f s or links

1 answer:

7 0

Answer:I know you said no PDFs but I know this site that can help you. Just search up ‘Desciptive Statistics Calculator’ it can help you a lot

Step-by-step explanation:

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In an animal shelter, the ratio of dogs to cats is 5 to.There are 25 dogs. Write and solve a proportion to find the number c of

pishuonlain [190]

Answer:

5 cats

Step-by-step explanation:

d/c = 5/1

d = 25 Substitute in the proportion

25/c = 5/1 Multiply both sides by c

25 = 5c/1

25 = 5c Divide each side by 5

c = 5

There are five cats.

4 0

3 years ago

There are 10 students in class and the number of siblings in their families are given by {1,1,1,1,2,3,3,4,4,4}. Consider the exp

Svetllana [295]

Answer:

a. Check the attached image

b. The Pr(Y > 2) = ½

c. The mean is 2.4

d. The standard deviation is: 2.72

e. The exact value is 1 because it is certain from the given data that any probability will fall within that range.

Step-by-step explanation:

a. An image showing the step by step solution is attached.

b. P(Y > 2) = P(3) + P(4)

= 2/10 + 3/10 = 5/10 = ½

c. The mean is 2.4

d. The standard deviation is: 2.72

e. Check the attached image for the steps.

7 0

4 years ago

Use quadratic regression to find

vovangra [49]

Answer:

y = 6x² -13x -5

Step-by-step explanation:

(1,-12) (2,-7) (5,80)

y = ax² + bx + c

-12 = a*1² + b*1 + c = a+b+c (1)

-7 = 4a + 2b + c (2)

80 = 25a + 5b + c (3)

(2)-(1): 3a + b = 5 (4)

(3)-(2): 21a + 3b = 87 (5)

(4)*3: 9a + 3b = 15 (6)

(5)-(6): 12a = 72 a = 6

(4) b = -13

(2) c = -5

4 0

3 years ago

Which of the following is equivalent to

Firlakuza [10]

Answer: it will be D

Step-by-step explanation: if You graph them you will get the same coordinate plates

7 0

3 years ago

I need help 0ls respond

STatiana [176]

Hi what’s your question

5 0

3 years ago