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Helga [31]
3 years ago
8

A study of a new medication found that patients who took the medicine have reduced blood pressure, compared to those who did not

take the medicine. The research team concluded that the medicine caused the reduction in blood pressure. Which study design did they most likely use?
They most likely used an experiment with patients randomly assigned to take the medicine or not take the medicine.

They most likely used an experiment with patients randomly assigned to groups based on their blood pressure.

They most likely used a survey asking patients if they took the medicine and how their blood pressure was affected.

They most likely used a survey asking patients if they took the medicine and if they felt the medication helped their blood pressure.
Mathematics
2 answers:
laila [671]3 years ago
7 0

Answer:

They  most likely used an experiment with patients randomly assigned to take the medicine or not take the medicine.

Step-by-step explanation:

You see, it wouldn't make much sense to randomly assign people but also classify them with a blood pressure moniker as well. People with high/low BP will respond differently to the experimental medication than a person with regular BP. This is why it is important to keep everything in a sample space the same, or if not, to have a fair and random assortment of people.

babymother [125]3 years ago
5 0
<span>They most likely used an experiment with patients randomly assigned to take the medicine or not take the medicine.</span>
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A newspaper’s cover page is 3/8 text, and photographs fill the rest. If 2/5 of the text is an article about endangered species,
jolli1 [7]

Answer:

\frac{3}{20}

Step-by-step explanation:

Let x be the cover page

We are given that a newspaper 's cover page is \frac{3}{8} text and photograph fill the rest.

We have to find that how much part of cover's page is the article about endangered species

Text =\frac{3}{8}x

Remaining part =x-\frac{3}{8} x

Remaining part =\frac{8x-3x}{8}=\frac{5}{8} x

Therefore, a newspaper;s cover page fill with  Photograph =\frac{5}{8}

If the article about endangered species=\frac{2}{5} of text

Therefore, the article about endangered species=\frac{2}{5}\times\frac{3x}{8}=\frac{3}{20}x

Hence,  the article about endangered species is \frac{3}{20}of the cover page.

7 0
3 years ago
Read 2 more answers
An item that cost $5.50 is marked up %60. What is the new price of the item after the markup? Show work please​
r-ruslan [8.4K]

Answer:

$8.80

Step-by-step explanation:

In order to find the new price, you need to add 60% of the original price (5.50) to the original price. You have two options:

1) multiply $5.50*0.6 to get 60% of the original price. You would get $3.30. Then add $3.30+$5.50, which equals $8.80. This way takes longer but shows you all the steps.

2) The shorter way is to simply multiply $5.50*1.6, which also equals $8.80. This works because the "1" automatically adds the 5.50 to 60% of the original price, this way you don't have to multiply then add.

If you don't understand how the second way works or your teacher taught you #1, just do it the first way.

8 0
3 years ago
1. Find the point that is a solution for y = 6x + 8
Daniel [21]
An easy way to solve this equation is to plug in the coordinates.

A. 6(2) + 8 ≠ 1

✅ B. 6(-1) + 8 = 2

C. 6(2) + 8 ≠ 4

D. 6(-2) + 8 ≠ 4
6 0
3 years ago
The value of y varies directly with x, and y = 343 when x = 49. find y when x = 8.
Natasha_Volkova [10]

The value of y is 56 when x = 8.

Given

y = 343 when x = 49

Value of y varies directly with x

Therefore, y ∝ x

We can write the equation with a constant 'k'

y = kx

When y = 343 and x = 49

343 = k × 49

k = 343/49

k = 7

When x = 8,

y = kx

y = 7 × 8

y = 56

The value of y is 56 when x = 8.

Find out more information about value of y here

brainly.com/question/1907608

#SPJ4

5 0
2 years ago
4 1/6 + (-2 5/6)= kjoijoijoiojijjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
Bogdan [553]

Answer:

I don’t know about the last part but what I do know id the answer to the equation.

Answer: 1 1/3

Step-by-step explanation:

1. Remove the paranthesis

Removing the paranthesis will make it much easier to solve the equation.

We now have 4 1/6 + -2 5/6.

2. Rearrange the equation

We can’t have two symbols next to each other. We need to cross out one symbol so we can have only one. + and - = -. So let’s keep the "-" symbol.

We now have 4 1/6 - 2 5/6.

3. Solve the remaining equation

Now that we have a proper equation which we can solve, let’s do it.

We should then end up with 1 1/3.

Answer: 1 1/3

8 0
3 years ago
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