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Mashutka [201]
3 years ago
13

Marcy is concerned that her findings may be due to an extraneous uncontrolled variable and not her treatment. Marcy is most conc

erned with:_______
a. triangulation.

b. respondent validation.

c. external validity.

d. internal validity.
Mathematics
1 answer:
Westkost [7]3 years ago
4 0

Answer:

c

Step-by-step explanation:

because it's her extraneous uncontrolled variable

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Pls help this is kinda hard and it’s due in 45 minutes
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Answer:

16.8 inches

Step-by-step explanation:

Perimeter =2(length+width) so 2·(5.6+2.8)≈16.8

8 0
3 years ago
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An animal shelter has a 58% adoption rate for puppies. Of all puppies in the shelter, 80% live to be 7 years or older. Of the pu
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Answer:

P(A∩B) = 0.522

Step-by-step explanation:

Let's call A the event that a puppy is adopted and B the probability that a puppy live 7 or more years

So, the probability P(A∩B) that a randomly selected puppy in the shelter will get adopted and live 7 or more years is:

P(A∩B) = P(A)*P(B/A)

Because A and B are not independents.

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Finally, replacing the values, we get:

P(A∩B) = 0.58*0.9 = 0.522

It means that the 52.2% of the puppies are adopted and live 7 or more years.

7 0
3 years ago
Bharat has two identical ink pens with full ink. He used 3/4th of the ink from the first pen and 2/3rd of the ink from the secon
Leno4ka [110]

Answer:

0.58333333333 Or 0.58333333333/100000000000

Step-by-step explanation:

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3 years ago
Simplify the expression:<br><br> 4(2 + 8v) =
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Answer:

8 + 32v

Step-by-step explanation:

6 0
3 years ago
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The probability of drawing two nickels from a bag at random without replacement is 33/95 . The probability of drawing a nickel f
Natasha_Volkova [10]
The probability that two events occur is equal to the product of the individual events happening or occurring. For this item, we let x be the probability that is unknown such that the relationship between them may be expressed as,
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