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Vaselesa [24]
3 years ago
14

A recent study showed that teenagers who had night light in their rooms as babies are more likely to suffer from myopia than tee

nagers who had not used night lights. But genetic factors are known to play a role, and near-sighted parents are more likely to install a night light in their children's room.This makes it hard to tell if the night light caused the subsequent myopia. This is an example of
A. double-blinding
B. the placebo effect
C.confounding
D.control
E. an explanatory variable
Mathematics
1 answer:
Reil [10]3 years ago
8 0

Answer:

I think its B. Im like 87% sure its B

Step-by-step explanation:


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Plz help me this was due yestrday but my mom wont let me do it
AURORKA [14]

Answer:

120

Step-by-step explanation:

z=8 w=8

7(8)=56

8(8)=64

56+64=120

8 0
2 years ago
Can y’all help me pls
krok68 [10]

Answer:

2. The change in expected height for every one additional centimeter of femur length.

Step-by-step explanation:

<u>1. The expected height for someone with a femur length of 65 centimeters.</u>

<em>Doesn't make sense, that would be height value when centimeters = 65.</em>

<u>2</u><u><em>. </em></u><u>The change in expected height for every one additional centimeter of femur length.</u>

<em>Makes sense, for every increase in one additional centimeter, we can expect the height to be proportional to the slope.</em>

<u>3. The femur length for someone with an expected height of 2.5 centimeters.</u>

<em>Doesn't make sense, the linear relationship relies on the femur length to get the height.</em>

<u>4. The change in expected femur length for every one additional centimeter of height.</u>

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6 0
1 year ago
What pattern exists in the three places in each period?
alukav5142 [94]

Answer:

  • the pattern is (hundreds, tens, ones)
  • 963 thousand 104

Step-by-step explanation:

a) Each place in our decimal place-value number system has a name. In the number 356,039, the left-most digit 3 is in the hundred-thousands place, so it is read (by itself) as "three hundred thousand." Together, the digits 356 of that number signify three hundred fifty-six thousand. They are said to be in the "thousands period." Each period of three digits will be grouped like that to specify the number of hundreds, tens, and ones in the period.

__

b) The given expanded form adds up to give ...

  963,104

Based on the above discussion, the name of this number is ...

  "nine hundred sixty-three thousand one hundred four"

Using digits to help write this, it would be 963 thousand 104.

3 0
3 years ago
What types of angles are &lt;4 and &lt;5?
alexandr1967 [171]

Answer:  Alternate interior angles

Step-by-step explanation:

7 0
2 years ago
Y-intercept of y=-2x+4
Kruka [31]

Answer:

Y=4

Step-by-step explanation:

y intercept means x=0

Y=4

3 0
3 years ago
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