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
Mekhanik [1.2K]
3 years ago
13

If you collect samples by dividing the population into subpopulations (often based on demographics) and then randomly sampling w

ithin each subpopulation, you are doing __________. stratified sampling cluster sampling simple random sampling convenience sampling
Mathematics
1 answer:
ivann1987 [24]3 years ago
4 0
SAMPLIFICATION ITS A FANCY WORD FOR SAMPLE MEHEHHEHEHE

You might be interested in
Without drawing the graphs, find the points of intersection of the lines: a 7x+4y=23 and 8x–10y=19
emmainna [20.7K]

Answer:

(3,0.5)

Step-by-step explanation:

The given system has equations:

7x + 4y = 23 \\ 8x - 10y = 19

Let us multiply the second equation by 4 and the first equation by 10.

70x + 40y = 230 \\ 32x - 40y = 76

We add both new equations to get:

102x = 306 \\ x =  \frac{306}{102}  = 3

Put x=3 into the first equation and solve for y.

7(3) + 4y = 23 \\ 21 + 4y = 23 \\ 4y = 23 - 21 \\ 4y = 2 \\  y =  \frac{1}{2}

The point of intersection is the solution to the system of equation which is (3,0.5)

8 0
3 years ago
Given two different circles O and Q, which of the following cases presents two circles with no (zero) common tangents?
borishaifa [10]
Concentric circles because if a line is tangent to one circle, it would only intersect teh other 
3 0
3 years ago
Read 2 more answers
19x+rx= -37x+w what is the x
seraphim [82]

Answer:

x = w / (56 + r)

Step-by-step explanation:

Given the equation :

19x + rx= -37x + w ; find x

Collecting like terms

19x + rx + 37x = w

Factorizing x in the Left hand side

x(19 + 37 + r) = w

x(56 + r) = w

Therefore we can obtain x by dividing both sides by (56 + r)

x(56 + r) / (56 + r) = w / (56 + r)

x = w / (56 + r)

5 0
3 years ago
Based on the scatter plot, what type of association is shown between hours of sleep and test scores?
bonufazy [111]
This is easily (A) Positive Association
7 0
3 years ago
WILL GIVE BRAINLIEST FOR CORRECT ANSWER!
svp [43]
Heya friend !!

During water cycle , Water in liquid state absorbs tremendous amounts of incoming solar energy causing it to evaporate and it is released back in the atmosphere while the formation of clouds during Condensation .

Hence , We got our answer as D.

Hope it helps you :)
5 0
4 years ago
Other questions:
  • What Is 1 - 1/3? <br> Fraction Skills
    8·2 answers
  • HELP HOW DO YOU WORK THIS OUT!!
    12·1 answer
  • The function C(x) = 29x + 54.5 represents the cost (in dollars) of cable for x months, including $54.50 installation fee. How ma
    12·1 answer
  • What is the inverse of (-3,4), (2,6), (5,-3)
    15·1 answer
  • Which expressions represent a difference of squares?
    13·1 answer
  • Which statement(s) describe the graph of the equation x=-2? Select all that apply
    7·1 answer
  • PLEASE HELP QUICK ILL GIVE YOU BRAINLIEST IF ITS RIGHT!!!​
    6·1 answer
  • Help with question 1 will give brainlest
    5·1 answer
  • Please help me dis is my last one
    10·2 answers
  • Have to make the equation on the left look like the equation on the right. There are apparently only 2 steps but I can not figur
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!