Please help very confusing

A cognitive psychologist would like to evaluate the claim that the omega-3 fatty acids in fish can help improve memory in normal

Leno4ka [110]

Answer:

a.

Independent variable:

i. Fish Extract of Omega 3 Fatty Acids

ii. Placob

Dependent variable:

Memory test

b.

The dependent variable is continuous

c.

The scale of measurement is Ratio scale

And it is a Discrete Variable

d.

Experimental Research Method

Explanation:

a.

There are three variables in the question above.

They are

Fish Extract of Omega 3 Fatty Acids, Placob and Memory test.

The first 2 are the independent variable

They are so because they can't be controlled.

Independent variable also known as controlled variable are those variables that their values do not depend on or affected by the state of any other variable in the experiment.

It is the condition that can be altered in an experiment. It is the variable you control

While the dependent variable are the response or results of an experiment because we are assessing how it responds to a change in the independent variable, so you can think of it as depending on the independent variable.

The independent variable is the Memory test, which proves how much information participants were able to retain from the articles.

b.

The dependent variable, Memory Test is continuous variable.

A variable is said to be a continuous variable if it can take on an uncountable set of values.

Memory test can't be measured in numbers; it can only be evaluated based on reasoning.

c.

The Ratio scale of measurement are used sto represents quantity and has equality of units:

Here, the independent variable are measured in milligrams (500mg, daily).

2 of it is 1000mg; none of it is 0mg which means there's no quantity of the fish extract.

And it is a Discrete Variable because it can take a particular range of Value (i.e. 500mg, daily)

d.

The above research is an experimental research method because it involves the psychologist assigning subjects (the fish extract and platob) to treatments for the purpose of seeing what effect (the memory test) the treatments have on some response.

8 0

4 years ago

Can someone help me and walk me through it? Thank you:)

olya-2409 [2.1K]

First find the area of the triangle.

$\sf A=\dfrac{1}{2}bh$

$\sf A=\dfrac{1}{2}(6)(12)$

$\sf A=36cm^2$

ABCE is a parallelogram, this means that the area of triangle ABE is equal to the area of triangle EBC. The are of the entire trapezoid is 180 square centimeters, we already found the area of the triangle, so that leaves us with:

$\sf 180-36=144$

So the area of the entire parallelogram must be 144 square centimeters. So each half of the parallelogram must be equal to:

$\sf 144\div 2=\boxed{\sf 72cm^2}$

8 0

3 years ago

Need help asap!!!!!!

Ostrovityanka [42]

They are inverses.

The easiest way to solve this is to take the g(x) equation and switch the g(x) with the x. Then solve for your new g(x). Since it looks just like f(x) after doing that, it is an inverse.

5 0

3 years ago

Given ΔABC with A(–4, –2), B(4, 4), and C(18, –8), write the equation for the line containing median segment The term is line se

Monica [59]

Here we want to find the equation of the line containing the median CP.

P, being the midpoint of AB can be found using the midpoint formula as:

$\displaystyle{ P=( \frac{-4+4}{2} , \frac{-2+4}{2} )=(0, 1)$ .

The slope m of the line through CP can be found by the slope formula using points C(18, -8) and P(0, 1):

$\displaystyle{ m= \frac{y_2-y_1}{x_2-x_1}= \frac{-8-1}{18-0}= \frac{-9}{18}= \frac{-1}{2}$ .

Now, we can write the equation of the line with slope -1/2, passing through
P(0, 1):

$y-1= \frac{-1}{2}(x-0)\\\\y= -\frac{1}{2}x+1$ .

Answer: $y=-\frac{1}{2}x+1$

5 0

4 years ago

I need the answer asap

Anna71 [15]

Answer:

it's B

Step-by-step explanation:

the easiest why to tell is that, the slope intercept form y=mx+b is the form the equations are b is the y-intercept. If you look at the graph it crosses y at +16 not -16

5 0

3 years ago