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mylen [45]
4 years ago
7

A randomized, controlled experiment investigated this question using a random sample of 540 adult males as subjects. At the begi

nning of the study, researchers measured the blood pressure of all the subjects. Each subject was given a month's supply of either Drug A, Drug B, or a placebo, then was assigned to be on either a low-fat diet or a low-salt diet for that month-long period. At the end of the month, the researchers measured the blood pressure of each subject again, and compared the two blood pressure readings. How many different groups are there altogether in this study?
Mathematics
1 answer:
IceJOKER [234]4 years ago
7 0

Answer:

There are a total of 12 groups to study

Step-by-step explanation:

You have 3 possible supplies for each subject and they can have 2 different king of diets. That gives you alredy 3*2 = 6 different options to study. You can divide further when you make the comparisson at the end of the month, allowing you to subdivide into two more categories: wheater their blood pressure is higher or lower.

That gives you a total of 3*2*2 = 12 groups to study.

I hope I could help you!

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g100num [7]

Answer:

The answer is A "If I dont swim one mile before work, then I will run three miles after work"

Step-by-step explanation:

Since the double negation of any statement is equivalent to the original in classical logic, the inverse of the inverse is logically equivalent to the original conditional . Thus it is permissible to say that and are inverses of each other. Likewise, and are inverses of each other. So the opposite of what they are saying. Like If it rains the grass will get wet. Inverse- If it does not rain the grass will not get wet.

7 0
3 years ago
How can you cancel out the 5y and 7y from:<br> 4x^2 over 5y times 7y over 12x^4
PtichkaEL [24]
4x^2/5y * 7y/12x^4
7/15x^2
5 0
4 years ago
Read 2 more answers
A 4.1 B 16.4 C4.5 D 20.5
DerKrebs [107]
Hewwo the answew is d
4 0
3 years ago
Read 2 more answers
Complete the function table,
weeeeeb [17]

Answer:

f(x)=x-2

f(2)=2-2=0

f(3)=3-2=1

you only have attach the number to x

4 0
3 years ago
Read 2 more answers
HOW can you decide whether a relationship is linear by studying the pattern in a data table?
abruzzese [7]
For a relationship to be linear, there must be a constant rate of change. To check this, you need to calculate the equation of the line.
A linear line will always have an equation in the following pattern:
y = mx + c where m is the slope and c is a constant.
This equation must be of first degree (highest power is x^1) to be linear.

Note:
the slope can be calculated using two points (x1,y1) and (x2,y2) as follows:
m = (y2 / y1) / (x2 - x2)
You can then use points from the table and substitute in the equation to calculate the value of c.
4 0
4 years ago
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