Use the data in the following table, which summarizes blood groups and Rh types for randomly selected subjects. Assume that subjects are randomly selected from those included in the table. Blood Groups O A B AB Blood Types Rh+ 54 48 25 23 Rh− 17 18 8 4 If one person is selected, find the probability of getting someone who is Group A or type Rh+. Are the events of selecting someone who is Group A and the event of someone who is type Rh+ disjoint events?
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
Use the data in the following table, which summarizes blood groups and Rh types for randomly selected subjects. Assume that subjects are randomly selected from those included in the table.
|
Blood Groups |
|
||||
|
O |
A |
B |
AB |
||
|
Blood Types |
Rh+ |
54 |
48 |
25 |
23 |
|
Rh− |
17 |
18 |
8 |
4 |
If one person is selected, find the
Rh+.
Are the events of selecting someone who is Group A and the
Rh+
disjoint events?
The probability of getting someone who is Group A or type
Rh+
is
nothing.
(Type an integer or a simplified fraction.)
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