Of the Delegates at a Convention, 60% Attended the Breakfast

question 48

Short Answer

Of the delegates at a convention, 60% attended the breakfast forum, 70% attended the dinner speech, and 40% attended both events.
a. If a randomly selected delegate is known to have attended the dinner speech, what is the probability he or she also attended the breakfast forum?
______________
b. What is the probability that a randomly selected delegate either attended the breakfast forum, or attended the dinner speech, or attended both?
______________

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Definitions:

Auto Fill Options Menu

A feature in spreadsheet software that provides users with choices on how filled data is formatted and applied.

Destination Area

The target location to which data is moved, copied, or saved within a computer system or software application.

Source Area

The location or origin from which data is obtained or drawn.

Auto Fill Options Menu

A feature in spreadsheet and form applications that provides automatic suggestions for completing fields based on previously entered data.