Answer:
c. Cluster sampling
Step-by-step explanation:
Taking into account that the exercise researcher is looking with limited resources to study a population that is divided, her best option is cluster sampling, which is a method applicable to this type of population, we could select in each group randomly her sample, the observational study is discarded because she does not have much availability of time or resources, nor would the stratified study be useful because she should select subgroups and create them to take samples and this would take more time and resources and sampling systematic is not adequate because it must have all the individuals and after having the list select the sample, but as we know, it is a process that will study the number of individuals so this option is not feasible.
30,000+2000+0+40+3 ur welcome
Answer:
1) A , 2) C , 3) D
Step-by-step explanation:
Answer:
7 ⁻²²
Step-by-step explanation:
7¹⁶/7¹² = 7⁻¹⁸/7ˣ
7⁽¹⁶⁻¹²⁾ = 7⁽⁻¹⁸⁻ˣ⁾
16 - 12 = - 18 - x
4 = - 18 - x
x = - 18 - 4
x = - 22
Since we do not know anything about angles, all we can do is to give the maximum and minimum lengths of the third side using the triangle inequality, which is:
the sum of lengths of the two shorter sides of a triangle must be GREATER than the third side (say X)
If 9 and 14 are the shorter sides, then the sum of 9 and 14 must be greather than the third side, X. => 9+14=23>X, or X<23. .................(1)
If 14 is the longest side, then 9+third side (X) must be greater than 14, or 9+X>14, or X>14-9=5, or X>5, or 5< X ..............................(2)
Combining conditions (1) and (2)
5 < X < 23
OR
X must be greater than 5 AND X must be less than 23
OR
X must be between 5 and 23.
