4 years ago

True or false Controlled experiments can be randomized or nonrandomized

Mathematics

1 answer:

DIA [1.3K]4 years ago

3 0

Answer:

True

Step-by-step explanation:

Using a random chance procedure to assign subjects to treatment or control reduces bias. d. In a blind experiment, the subjects do not know whether they are in the treatment group or control group.

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goldenfox [79]

Answer:

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Step-by-step explanation:

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3 years ago

73 = 87 - n what is n

enot [183]

Answer: 14

Step-by-step explanation:

Make n the subject.

73 = 87 - n

n + 73 = 87

n = 87 - 73

n = 14

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3 years ago

Read 2 more answers

Solve for x: 3(x + 1)= -2(x - 1) + 6.

pickupchik [31]

Answer:

x=1

Step-by-step explanation:

3(x + 1)= -2(x - 1) + 6.

Distribute

3x+3 = -2x+2+6

Combine like terms

3x+3 = -2x+8

Add 2x to each side

3x+3+2x = 8

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Subtract 3 from each side

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Divide by 5

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4 years ago

A bus pass costs $9 per week. Which of the following equations shows the total cost in dollars, t, of the bus pass for a certain

Julli [10]

(total cost in dollars) = (cost per week)*(number of weeks)
t = 9*w
t = 9w

----------------------------------------------------------------------------------

Final Answer: Choice B) t = 9w

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3 years ago

X(3+y-2) ; use x=3 and y=3

maria [59]

Answer:

Step-by-step explanation:

Put in 3 for x and 3 for y:

3(3 + 3 - 2)

3(4)

8 0

3 years ago