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
Arturiano [62]
4 years ago
8

A researcher is conducting a study on eating disorders. Using a list of recent participants in the online Weight Watchers progra

m, she randomly selects a name from the alphabetized list. She then chooses every tenth person from that point on to include in her study. What is this sampling plan and example of?A. Judgmental SamplingB. Random SamplingC. Systematic SamplingD. Stratified SamplingE. Cluster Sampling
Mathematics
1 answer:
AlexFokin [52]4 years ago
5 0

Answer:

Option c

Step-by-step explanation:

Systematic sampling is a probability type of samplng method in which elements are picked from a large population at a random start point and then the others are picked by constant periodic intervals which is usually done by dividing the population size by the chosen sample size. Then do a random start between 1 and the sampling interval, then repeatedly add the sampling interval to select subsequent elements.

You might be interested in
How do you solve 3(15.9 - 3.9)<br> Step by step? I need help
N76 [4]

Answer:

36

Step-by-step explanation:

3(15.9 - 3.9)

3 · (15.9 - 3.9)

3(15.9) - 3(3.9)

47.7 - 3(3.9)

47.7 - 11.7

36

5 0
3 years ago
Read 2 more answers
One the first day of school, each student is given $0.50 to attend. On day two, each student earns $1.00, day 3, $2.00, etc. How
aalyn [17]

Answer:

They earn $256 on the ninth day of school.

Step-by-step explanation:

A geometric sequence(in which each term is the previous term multiplied by the ratio) has the following format:

a_{n+1} = r \times a_{n}

In which r is the common ratio.

We can also find the nth term as a function of the first term, by the following equation:

a_{n} = a_{1} \times r^{n}

In which

r = \frac{a_{n+1}}{a_{n}}

In this question:

On the first day, $0.50. So a_{1} = 0.5.

Day two $1.00, day three $2.00.

So

r = \frac{1}{0.5} = \frac{2}{1} = 2

Then

a_{n} = 0.5 \times 2^{n}

How much do students earn on the ninth day of school?

a_{9} = 0.5 \times 2^{9} = 256

They earn $256 on the ninth day of school.

3 0
3 years ago
Which expression is equivalent to the one below?
Alex17521 [72]

Answer:

D . 9 .1/13

Step-by-step explanation:

9\div 13 = \frac{9}{13} \\\\9\cdot \frac{1}{13}\\\\=\frac{9}{1}\cdot \frac{1}{13}\\\\=\frac{9\cdot \:1}{1\cdot \:13}\\\\=\frac{9}{13}

4 0
4 years ago
Simplify each expression then state the coefficient of the variable in each expression <br> X+x+3+4
oksian1 [2.3K]

Answer:

2x +7

The coefficient of the variable is 2

Step-by-step explanation:

x+x+3+4

Combine like terms

2x +7

The coefficient of the variable is 2

6 0
3 years ago
Which expressions have a value between 5 and 6?
mr Goodwill [35]

Answer:

24, pie + 2

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Please help!! ASAP!!
    9·1 answer
  • Subtract these polynomials.
    13·1 answer
  • A 9-foot roll of wrapping paper costs $10.26 . What’s the price per yard?
    15·1 answer
  • 4/20 divided by 1/5<br><br> SOMEONE PLEASE ANSWER THOS QUICKLY!
    7·2 answers
  • What is the answer to question 12?
    11·1 answer
  • Write an equation for the line that passes through (4,-6) and (-7,-6). Is the line parallel or perpendicular to the y-axis?
    9·1 answer
  • Could somebody help w/ this? :&gt;
    8·1 answer
  • F(x) = 6^x for x=3<br> are the function for the given value:
    15·1 answer
  • Find the volume.!!!!
    11·2 answers
  • What's the value of x for the equation 2(x-4)=6x+4
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!