In a Survey of 22 Instructors, It Was Found That

question 8

Multiple Choice

In a survey of 22 instructors, it was found that 5 liked whiteboards, 15 liked blackboards, and 2 liked both. How many instructors did not like whiteboards?

• A) 13
• B) 4
• C) 19
• D) 17

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Definitions:

Interruptions

Unexpected or unplanned for events or disturbances that impede or halt progress, especially in sales or productivity contexts.

Demonstration

A visual or practical presentation showing how a product or service works or its benefits.

Probability

The measure of the likelihood that an event will occur, quantified as a number between 0 and 1.

Spontaneity

Acting on impulse rather than planning in advance, characterized by sudden and unplanned actions.