1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Hoochie [10]
2 years ago
7

A researcher posts a magazine advertisement offering $30 in exchange for participation in a short study. The researcher accepts

the first three people who respond to the advertisement. Which of the following statements is true about the sample?
A. It is not a valid sample because it is not a random sample of the population.
B. It is a valid sample because the first three people were selected to participate. C. It is a valid sample because money was offered to participants.
D. It is not a valid sample because it is only a short study.
Mathematics
2 answers:
Lesechka [4]2 years ago
8 0

Answer:

It is A

Step-by-step explanation:

matrenka [14]2 years ago
7 0
The answer to your question is A
You might be interested in
What is 25% of 15<br> Please help thank you!
Vlad1618 [11]

3.75, to do this do 15*.25

4 0
3 years ago
Read 2 more answers
A Uber charges $3.50 for pick up and $0.40 per mile. The ride costs $7.50. How far did they travel?
barxatty [35]

Answer:

10 miles

Step-by-step explanation:

7.50 - 3.50= 4

4 divided by 0.40 = 10

7 0
2 years ago
Read 2 more answers
Twenty-eight students reported how many email accounts they have. The dot plot below shows the data collected: A dot plot is sho
lisov135 [29]
I have attached a picture of the dot plot that you described.  Each dot on the number line represents one answer.  So, the number of dots above the number 4 tells us that there were 6 students who have 4 email accounts.

The answer is that <span>There are exactly 6 students with 4 email accounts.</span>

6 0
2 years ago
PLEASE HELP ASAP<br><br>Solve. <br><br>y &gt; 2x + 2<br>y ≤ -3/2 x - 5
Fynjy0 [20]
2x + 2 < - \frac{3}{2} x - 5 \\ 2x + \frac{3}{2} x < - 5 - 2 \\ 3.5x < - 7 \\ x< - 2
x < - 2 \\ x < \frac{y - 2}{2}
-2 = \frac{y - 2}{2} \\ y=-2
7 0
2 years ago
A train travels at a constant rate of 45 miles per hour.
givi [52]
A. d=45t
b. 112.5 miles. 112.5=45•2.5
6 0
3 years ago
Read 2 more answers
Other questions:
  • NEED HELP NOW! Use the substitution method to solve the system of equations. choose the correct ordered pair. x+y=12 -x=-y-10
    8·2 answers
  • Given k║p.
    9·1 answer
  • 3(x+y)=3x+3y is what property
    8·1 answer
  • PLEASE HELP ME !!!! What is the value of |-25| ?
    14·2 answers
  • What is the answer?(math)
    9·1 answer
  • Need Help With Number 17
    5·2 answers
  • Help!! Please also explain how you got your answer
    13·1 answer
  • Can someone please help me with this problem???
    5·1 answer
  • 1) A Rectangle has a length of 4x+2 and a width of 7x+6. The
    12·1 answer
  • Add -4 + 2\3. Please answer This is apart of my grade
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!