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\begin{tabular}{|c|c|c|}
\hline Place & Is a city & Is in North America \\
\hline India & & \\
\hline Tokyo & v & \\
\hline Chicago & v & v \\
\hline Peru & & \\
\hline Miami & v & v \\
\hline Canada & & v \\
\hline Mexico & & v \\
\hline
\end{tabular}

Let event [tex]$A=$[/tex] The place is a city.
Let event [tex]$B=$[/tex] The place is in North America.

Which outcomes are in [tex]$A$[/tex] or [tex]$B$[/tex]?

A. \{Tokyo, Chicago, Miami, Canada, Mexico\}


Sagot :

To determine the outcomes that are in [tex]\( A \)[/tex] or [tex]\( B \)[/tex], let's first identify the elements of each set based on the given table.

Event [tex]\( A \)[/tex]: The place is a city.

From the table, the places that are cities are:
- Tokyo
- Chicago
- Miami

So, we can write:
[tex]\[ A = \{ \text{Tokyo, Chicago, Miami} \} \][/tex]

Event [tex]\( B \)[/tex]: The place is in North America.

From the table, the places that are in North America are:
- Chicago
- Miami
- Canada
- Mexico

So, we can write:
[tex]\[ B = \{ \text{Chicago, Miami, Canada, Mexico} \} \][/tex]

Now, we need to find the union of events [tex]\( A \)[/tex] and [tex]\( B \)[/tex], which includes all outcomes that are either in [tex]\( A \)[/tex] or in [tex]\( B \)[/tex].

To form the union [tex]\( A \cup B \)[/tex], we combine all distinct elements from sets [tex]\( A \)[/tex] and [tex]\( B \)[/tex]:

- From [tex]\( A \)[/tex]: Tokyo, Chicago, Miami
- From [tex]\( B \)[/tex]: Chicago, Miami, Canada, Mexico

Combining these and removing duplicates (Chicago and Miami appear in both sets), we get:
[tex]\[ A \cup B = \{ \text{Tokyo, Chicago, Miami, Canada, Mexico} \} \][/tex]

Therefore, the outcomes that are in [tex]\( A \)[/tex] or [tex]\( B \)[/tex] are:
[tex]\[ \{ \text{Tokyo, Chicago, Miami, Canada, Mexico} \} \][/tex]

The correct answer is not option A. The correct outcomes that are in [tex]\( A \)[/tex] or [tex]\( B \)[/tex] are:
[tex]\[ \{ \text{Tokyo, Chicago, Miami, Canada, Mexico} \} \][/tex]