Basic Concepts of Probability

It is the measure or estimation of how likely an event will occur.

• Experiment

• Probability

• Sample Space

• Event

It is the set of all possible outcomes in an experiment.

• Event

• Sample Space

• Outcomes

• Probability

The probability of getting a '7' when you roll a die.

• 0.5

• 1

• 0

• 0.25

Leigh was asked to pick two cards from a standard deck of playing cards. She picked a King of hearts and an ace of spade.

What is the experiment in the given situation?

• Picking king of hearts and an ace of spade

• Picking two cards from a standard deck of playing cards

• All the cards in a standard deck of playing cards

• Getting two different cards

Leigh was asked to pick two cards from a standard deck of playing cards. She picked a King of hearts and an ace of spade.

What is the event in the given situation?

• Picking king of hearts and an ace of spade

• Picking two cards from a standard deck of playing cards

• All the cards in a standard deck of playing cards

• Getting two different cards

What is the sample space when you toss two coins?

• S={HH, TT}

• S={HT, TH}

• S={HH}

• S={HH, HT, TH, TT}

If two dice are rolled, the total outcomes are ______.

• 1

• 6

• 12

• 36

A box containing 10 slips of paper numbered 1-10. What are the possible outcomes when you randomly picked numbers that are multiples of 3?

• E={1,2,3,4,5,6,7,8,9,10}

• E={3,6,9}

• E={3,6,9,12,15,..}

• E= {3,4,5,6,7,8,9,10}

It is the well defined-results in an experiment.

• Outcome

• Event

• Sample Space

• Sample

It is the subset of the sample space.

• Sample

• Outcome

• Event

• Result