With 'random sampling' every item in the population has an equal probability of being selected.
Step-by-step explanation:

Answer:
<u>Challenge #1:</u>
<u>Different examples:</u>
2x+1=3x+2
4x+3=5x+4
3x+2=4x+3
<u>Challenge #2:</u>
<u>Different examples:</u>
2x+0=4x+1
3x+1=2x+5
6x+5=8x+6
Answer:
2/9
Step-by-step explanation:
2 + 7 = 9
There are two Indian stamps, and the total is 9 stamps.
Answer:
15
Step-by-step explanation:
when its 2 negative they turn to a positive