The same reason that you need to have the same amount of weight on both sides of something. It is a part of laws of math, you cant have an unbalanced chemical equation the same way you cant have an unbalanced math equation. You have to look at it like its a physical thing that has properties, not just ink on a paper.
Answer:
4%
Step-by-step explanation:
8 divided by 200 equals 0.04
0.04 times 100 equals 4
Therefore 4 percent of the people had a mild allgergic reaction.
Answer:
It is 14.45 percent
.
Step-by-step explanation:
Explanation:
The first day is independent from the day before. Therefore the first day probability (of rain) is 20 percent.
The second day (depends on the previous day) rainfall probability is 85 percent.
Finally, the third day (it must be rainy to satisfy the total probability) rainfall probability is 85 percent.
The probability of having three consecutive days which are rainy:
P(all rainy)
=
0.20
×
0.85
×
0.85
=
0.1445
or 14.45 percent.
