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
cricket20 [7]
3 years ago
13

What is meant by a stratified sample?

Mathematics
2 answers:
valina [46]3 years ago
7 0

Answer:

Sampling that is used to represent different groups depending on their different qualities.

Hope that helps. x

snow_lady [41]3 years ago
5 0

Answer:

A stratified random sampling involves dividing the entire population into homogeneous groups called strata (plural for stratum). Random samples are then selected from each stratum. ... A random sample from each stratum is taken in a number proportional to the stratum's size when compared to the population.

You might be interested in
PLEASE HELP ME! Last question, and I'm stuck!
svetoff [14.1K]
The expression should be (2/h)x(k+8).
5 0
3 years ago
Suppose you work for a large coffee distributor that has a secret coffee blend it sells to local stores. You mix the House blend
TiliK225 [7]

The ratio House blend/Organic Free Trade blend is the same and must remain the same.

So, the proportion is:

\frac{140}{168}=\frac{130}{x}

Where x is the unknown amount of the Organic Free Trade blend.

So, from the proportion, we have:

\begin{gathered} 140\cdot x=168\cdot130 \\ 140x=21840 \\ \frac{140x}{140}=\frac{21840}{140} \\ x=156 \end{gathered}

Answer: 156 pounds of Organic Free Trade blend

6 0
1 year ago
I need help with this problem! Must explain why.
OLEGan [10]

Answer:

95°

Step-by-step explanation:

Angle 1 and 4 are opposite angles, thus equal, so:

3x+10 = 4x-15 =>

x = 25

Angle 1 and 4 are 85°

Angle 4 and angle 6 are called allied (or co-interior) angles, which are supplementary, i.e., angle 6 = 180 - angle 4, so angle 6 = 95°.

Angle 6 and 7 are again opposite, so angle 7 is 95° as well!

7 0
3 years ago
Daisy spent a total of $31 before tax on ice cream. the table below shows the different flavors she bought. a carton of strawber
notsponge [240]
The cost of 1 vanilla ice cream and 1 strawberry ice cream should total to $31. Since you only bought one of each flavor, you simply have to add their unit prices. 

Cost for 1 carton of strawberry ice cream + Cost for 1 carton of vanilla ice cream = Total Cost
Total Cost = s + v  --> this is the general equation

Since s = 1.5 + v, the modified equation would be
Total Cost = 1.5 + v + v
Total Cost = 1.5 + 2v
5 0
3 years ago
(picture included) brainliest
Dimas [21]

Step-by-step explanation:

118 is the answer 238-120 = 118

5 0
3 years ago
Other questions:
  • (will give brainliest)<br> 2+5x-3x+6x
    14·2 answers
  • What is tge solution of the equation x^2-2x=-2?
    7·1 answer
  • What is the product written in scientific notation? (4.5x10^-8) (6x10^-4)A.
    13·1 answer
  • Explain how Main Sequence Stars
    5·1 answer
  • Help me lol (please)
    15·2 answers
  • Put the quadratic into vertex form and state the coordinates of the vertex. y= y= \,\,x^2-6x-3 x 2 −6x−3
    15·1 answer
  • Clara Clatter was born on December 27th, yet her birthday is always in the summer. How is this possible
    7·1 answer
  • Additive inverse of −9x+3
    13·2 answers
  • Find the higest common division of x² - 4 , x² - 6x and x}^{2-8​
    5·1 answer
  • 1. A buoy floats 19 yards from the eastern most point of a boat and 15 yards from the western most point of a second boat. The a
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!