W

WW

Here is the distribution of blood types for randomly

chosen black Americans:

o

А

в

AB

ele mai bun

AB. C

Blood

Type:

Probability:

0.49

.

0.20

0.04

Joe can safely receive blood transformations from

people with blood types O and B. What is the

probability that a randomly chosen black American

can donate blood to Joe?

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.