Debbie has two stocks X and Y Consider the following events

Debbie has two stocks, X and Y. Consider the following events:

X = the event that the price of stock X has increased
Y = the event that the price of stock Y has increased

The event \"the price of stock X has increased and the price of stock Y has not increased\" may be written as

A.) X or Y

B.) X Y

C.) X or Y

D.) X Y

Solution

Note that \"and\" has a symbol \"n\" (inverted U).

Also, to include the \"not\" in an event, we insert an apostrophe at the end.

Thus,

The event \"the price of stock X has increased and the price of stock Y has not increased\" may be written as

OPTION D: X n Y\' [ANSWER]