Answer:
x = 5
Step-by-step explanation:
Since we know that the diagonals bisect each other and divide into equal parts so ➡
x - 2 = 2x -7
2x - x = 7 - 2
x = 5
A. I’m not sure what this is asking but I’d guess 8,9,10
B is 19,20,21
C is there is none
Answer:
12.2*1=12.2
12.2*0.45=5.49
5.49+12.2=17.69
Step-by-step explanation:
3rd one. The circle is on 7 and is going to the left.
Answer: (A) randomly selected elements within each of the strata form the sample.
Step-by-step explanation:
Stratified random sampling is a random sampling technique in statistics .
- It includes the partition of the entire population into sub-parts called strata.
- The strata are formed on the basis of the characteristics shared by members .
- After the formation of strata, researcher randomly selects participants from each strata to ensure that that the participant of every group must involve in the sample to represent each character.
Hence, the correct answer is :
(A) randomly selected elements within each of the strata form the sample.
