Ask question

Ask question

All categories

3 years ago

13

A well-designed experiment should have which of the following characteristics?

1 answer:

igor_vitrenko [27]3 years ago

5 0

Answer:

The answer is E: I, II, and III

Step-by-step explanation:

The three major features of a well designed experiment are:

1. Replication: If an experiment cannot be replicated, then it is not a well-designed experiment. Replication is one of the major characteristics of a well designed experiment

2. Control: A well designed experiment must have a control. Control, in an experiment, can be referred to as the steps taken to curb the impact of extraneous variables

3. Randomization: Subjects are expected to be randomly assigned to different groups.

You might be interested in

Write an expression that will have a product less than both factors.

anzhelika [568]

$-2 * 3 = -6


-6 \ \textless \ -2 \ \textless \ 3$

6 0

3 years ago

Read 2 more answers

Which of these graphs represents a function?

Vlada [557]

Answer:

${ \tt{graph \: y \:and \:graph\: z}}$

8 0

3 years ago

F(x)=2x-4. F(x)=2x-4 f-1x=_x+_. Complete the inverse function

natita [175]

Answer:

$f^{-1}(x) = \frac{1}{2}(x +4)$

Step-by-step explanation:

Given

$f(x) = 2x - 4$

Required

Determine the inverse function

Start by replacing f(x) with y

$y = 2x - 4$

Swap the positions of y and x

$x = 2y - 4$

Make y the subject: <em>Add 4 to both sides</em>

$x+4 = 2y - 4+4$

$x+4 = 2y$

Make y the subject: <em>Divide through by 2</em>

<em></em> $\frac{1}{2}(x + 4) = y$ <em></em>

<em></em> $y = \frac{1}{2}(x + 4)$ <em></em>

<em></em>

Replace y with f-1(x)

$f^{-1}(x) = \frac{1}{2}(x +4)$

3 0

3 years ago

Suppose a study estimated that 68% of the residents of a town (with an error range of ±8 percentage points at 95% confidence) fa

kipiarov [429]

The correct answer would be 62%

5 0

3 years ago

Read 2 more answers

What is the area of rectangle ABCD?

lina2011 [118]

Multiply the length by the width and your answer will be there.

8 0

3 years ago

Read 2 more answers