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
torisob [31]
3 years ago
8

A researcher posts an online advertisement offering $25 in exchange for participation in a short study. The researcher accepts t

he first 10 people who respond to the advertisement. Which of the following statements is true about the sample? (1 point)
a
It is not a valid sample because it is only a short study.

b
It is a valid sample because money was offered to participants.

c
It is a valid sample because the first 10 people were selected to participate.

d
It is not a valid sample because it is not a random sample of the population.
Mathematics
2 answers:
valina [46]3 years ago
8 0

Answer:

A

Step-by-step explanation:

The study only consisted of 10 people. 10 people are not enough to come to a concrete conclusion for a project. Hope this helps!!

Lelu [443]3 years ago
8 0

Answer:

A) It is not a valid sample because it is only a short study.

You might be interested in
BRAINLIEST ASAP! PLEASE HELP ME :)
aleksandrvk [35]

Answer:

Two  

Step-by-step explanation:

The table is saying that, if Sandra swam enough races, she should expect to get 20 firsts, 12 seconds, 6 thirds, and two no placements.

Her expected value of points will be the average (mean) of all the points awarded for each race.

The average is the total number of points divided by the number of races.

\begin{array}{cccl}\textbf{Points} &  & \textbf{Total}\\\textbf{Awarded} & \textbf{Frequency} & \textbf{Points}\\3 & 20 & 60\\2 & 12 & 24\\1 & 6 & 6\\0 & 2 & 0\\\textbf{TOTAL} & \mathbf{40} & \mathbf{90}\\\end{array}

The simulation says that, if she swam 40 races, she should expect to earn a total of 90 points.

\text{Average} = \dfrac{\text{Total points}}{\text{Number of races }} = \dfrac{\text{90}}{\text{40}} =\textbf{2.25 points/race}

She can't win a fraction of a point, so she can expect to win two points in her first race.

5 0
3 years ago
A 100 centimeter stick broke into 3 pieces one piece was 7 centimeters long and another was 34 centimeters long how long was the
emmasim [6.3K]
The third piece is 59 cm long. 

Add the first two pieces up. 7+34= 41. Since the whole stick is 100 cm long, subtract 41 from 100 to find the length of the third piece. 100-41=59. 
6 0
3 years ago
Read 2 more answers
A candy company uses 8 gallons of corn syrup to make 1,776 pieces of candy. If they use 52 gallons of corn syrup per hour, how m
kondor19780726 [428]

Answer: 11,544 pieces of candy are made per hour.

Step-by-step explanation:

Hi, to answer this question we have to analyze the information given:

  • <em>Gallons of corn syrup used: 8 </em>
  • <em>Pieces of candy produced: 1,776 </em>
  • <em>gallons of corn syrup per hour: 52 </em>

If we apply proportions:

8 /1,776 = 52/x

Where x is the pieces of candy made per hour.

Solving

x = 52x1, 776 /8

x = 11,544

11,544 pieces of candy are made per hour.

4 0
3 years ago
Sal and her three friends plan to bowl one or two games each. Each game costs $2.50 each. Identify the independent and dependent
tino4ka555 [31]
So the dependent is the number of games because it's not definite they dont know for sure. so the domain always involves money!!! always! the range wiyld be the numbers they migh play like 8-10 so 4 to 8 is the range value. so determining off of that the indepedent variable would be the total cost becuase it wont change so your answer is C hope this helped have a good day!!!
3 0
3 years ago
Read 2 more answers
I don't know what is 4309/73
Alisiya [41]

Step-by-step explanation:

59 2/73

or 59.02 as the answer

4 0
3 years ago
Read 2 more answers
Other questions:
  • Multiply: (x + 3)(x – 4)
    13·2 answers
  • The sum of two numbers is 65. The larger number is 23 more than the smaller number . What are the numbers ?
    9·1 answer
  • Which graph represents a quadratic function with a vertex at (0,0)
    14·1 answer
  • Die Roll 60 Trials Face Number Tally 1 2 2 8 3 5 4 18 5 15 6 12 Jack rolled a die 60 times and recorded the results in the table
    8·2 answers
  • Is 1/3 more than 2/6
    7·2 answers
  • Which is the closest to the height of the ball
    7·1 answer
  • Ill just casually give points away :)
    12·2 answers
  • Pre Calc Question for one of my classes
    12·1 answer
  • Assemble the proof by dragging titles to the statements and reasons columns abc def
    13·2 answers
  • 8.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!