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
atroni [7]
3 years ago
15

dentify which of these types of sampling is​ used: random,​ systematic, convenience,​ stratified, or cluster. To determine her a

ir qualityair quality​, MirandaMiranda divides up her day into three​ parts: morning,​ afternoon, and evening. She then measures her air qualityair quality at 33 randomly selected times during each part of the day. What type of sampling is​ used?
Mathematics
1 answer:
Bess [88]3 years ago
6 0

Answer:

The sampling method used is a stratified sampling method

Step-by-step explanation:

sampling is the selection of a predetermined representative subpopulation from a larger population, to estimate the characteristics of the whole population.

Stratified sampling: Here, the total population are divided into subcategories (strata) before sampling is done. The strata are formed based on some common characteristics. In our example, the times of the day (morning, afternoon and evening) has widely varying atmospheric conditions which will add biases to the measurement of air quality. For example, the air in the morning if compared to the afternoon in an industrial area may be purer because of minimal industrial activity, hence effective comparison will be made by stratification.

You might be interested in
What is the answer to 9×(6+7-3)-2​
ZanzabumX [31]

Answer:

88

Step-by-step explanation:

PEMDAS

9*(6+7-3)-2

1) 6+7=13

13-3=10

9*10-2

2)9*10= 90

3)90-2= 88

3 0
3 years ago
Read 2 more answers
Please help!! Quickly
irina [24]

Answer:

The answer to your question is: a = 3.5 units

Step-by-step explanation:

Right triangle

to find a we need to use the trigonometric function cosine

cosine Ф = opposite leg / hypothenemus

Clear opposite leg from the equation

opposite leg = hypothenemus x cosine Ф

a = opposite leg = 5 x cosine 45

a = 5 x 0.70

a = 3.5 units

7 0
3 years ago
In the following isosceles trapezoid, find the value of x.
yulyashka [42]

Answer:

24

Step-by-step explanation:

22 - 8 = 14

14/2 = 7

Pythagoras theorem

25 squared -7 squared = 576

square root of 576 = 24

5 0
3 years ago
Explicit formula for<br><br> 1,5,3,6,12
yarga [219]
I don’t know how ybyybbyyb
4 0
2 years ago
A spinner with 12 equal sections is spun. Each section is numbered 1 to 12. What Is the probability of landing on an odd number.
Bezzdna [24]

Answer:

D

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • The total sales were $200 more than the manager's prediction. If x represents the manager prediction, write an expression to rep
    10·1 answer
  • How to find the value of x and y on a transversal
    9·1 answer
  • What combined inequality does the number line represent?
    11·1 answer
  • WILL GIVE BRAINLIEST ANSWER AND WRITE SOMETHING NICE ON YOUR PROFILE Find the perimeter of a rectangular area with a length of 1
    8·2 answers
  • A medical researcher wants to determine the percentage of females who take vitamins. He wishes to be 99% confident the estimate
    15·1 answer
  • Help! What is the answer?
    15·2 answers
  • The football team has a total of 25 jerseys. There are 10 medium-sized jerseys. What percent of the
    12·1 answer
  • The scatter plot shows the maximum noise level when different numbers of people are in a stadium. The linear model is given by t
    13·1 answer
  • What is the answer 10 4/5 - 3 1/6=
    9·1 answer
  • Use benchmarks. estimate
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!