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Mice21 [21]
3 years ago
14

A study conducted over a period of ten years assessed the income growth of people right out of college. The study began with a s

ample of 76 people, but by they 10th year the study was in contact with only 68 of the original participants.
a) missing data
b) self interest
c) precise numbers
d) voluntary response
Mathematics
2 answers:
Rudiy273 years ago
7 0

Answer:

The correct answer will be option-A

Explanation:

The key components of an investigation are the experiments and the results.

In the given question, since the study was conducted over 76 people for 10 years out of which data of only 68 people were collected after 10 years.

This will lead to disturb the analytical part of the results as the data of 8 experimental samples is missing. Therefore the hypothesis of the experiment would not be tested.

Thus, option-A is the correct answer.

tia_tia [17]3 years ago
5 0
A) missing data because its missing data durr
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Can someone explain this to me I need help T_T
vaieri [72.5K]

Answer: 6,800,000 people

Step-by-step explanation:

We are looking for the number of people, not the percentage of wealth that has been made up by the people.

2% of the people are the richest in the United States, and there are 340,000,000 people in total in the United States.

2% = 0.02

340,000,000 * 0.02 = 6,800,000

I hope this was helpful! :)

4 0
3 years ago
I can't figure it out. <br>2x+2y=2<br>-4x+4y=12<br>​
koban [17]

Answer:

how to solve 2x+2y=2 , -4x+4y=12

this is  solving equations using substitution .... i have ALOT more but i juss dnt get this stuff

2x + 2y = 2      -4x + 4y = 12

x + y = 1

x = 1 - y

-4x + 4y = 12

-4(1 - y) + 4y = 12

(-4 + 4y) + 4y = 12

-4 + 8y = 12

8y = 16

y = 2

2x + 2y = 2

2x + 2(2) = 2

2x + 4 = 2

2x = -2

x = -1

Check.

-4x + 4y = 12

-4(-1) + 4(2) = 12

4 + 8 = 12

Answer: x = -1 and y = 2

Step-by-step explanation:

6 0
2 years ago
Express the statement "A rectangular field with an area of 120m' has it length 12mn longer than the width" as quadratic equation
navik [9.2K]

Answer:

The quadratic equation is x^2 -12x -120 = 0

where x represents the length of the field

Step-by-step explanation:

We want to make an expression in terms of a quadratic equation;

Let the length of the field be x mm , then the width will be (x-12) mm

Mathematically , the area of the field will be L * B

Thus;

x * (x-12) = 120

That gives;

x^2 -12x = 120

x^2 -12x -120 = 0

6 0
3 years ago
What is the equation x^2+12x-3=16 written in the form (x-p)^2=q using the method of completing the square ?
Alexus [3.1K]

Step-by-step explanation:

{x}^{2}  + 12x -  3 = 16

{x}^{2}  + 12x = 19

{x}^{2}  + 12x + 36 = 19 + 36

(x + 6) {}^{2}  = 55

3 0
3 years ago
It's possible to build a triangle with a side lengths of 5, 5, and 10
yawa3891 [41]
Yeah, base is ten and the two sides are 5...
7 0
3 years ago
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