Intro to Probability

Enter all answers as REDUCED fractions.

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Reduce the fraction!

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How many numbers are a multiple of both 2 and 3?

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Reduce the fraction!

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Must meet both requirements. Reduce.

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Reduce!

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Reduce!

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Enter all answers as REDUCED fractions.

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You roll a 6-sided dice.  

P(3) = _______ 

P(odd number) = _______ 

P(>4) = _______ 

P(>4') = _______

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What is the probability of randomly choosing a day to go to Chick-fil-a, and it being open?
Hint: Chick-fil-a is closed on Sundays.

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Each student in a class of 27 gets a raffle ticket. If I pick one raffle ticket, what is the probability that your name will be chosen?

The complement of an event happening is that event NOT happening.  
For example...
The complement of passing your math test is NOT passing your math test.  

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If you add the probability of an event happening + the probability of that event NOT happening, what will they add up to?

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Event: shooting a basket and making it.
What is the P(E')?

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If you select one marble at random, what is P(picking a red marble)

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What if we want to find the probability of picking a marble other than blue...
What is the complement event of picking a marble other than blue?

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P(blue marble) = _______ 

P(blue marble') = _______ 

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Your favorite restaurant is closed the first day of each month. Find the probability of going to the restaurant on any random day in a year and it being open.

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Find the probability of picking a letter from the alphabet and getting a vowel.

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How many total drivers were there?

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How many total drivers had 2+ accidents?

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How many total drivers were teens?

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How many total drivers were adults over 20?

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The probability that a driver picked at random is a teen would be 27/125.
What is the probability that a driver picked at random is an adult over 20?
Your answer should be a fraction!

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What is the probability that a driver picked at random has been in 2+ accidents?
Your answer should be a fraction!

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P(0 accidents) =
Your answer should be a fraction!

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P(0 accidents') =
Your answer should be a fraction!

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What is the probability that a driver has been in 1 accident AND a teen?

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What is the probability that a driver has never been in an accident AND is an adult?

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What is the probability that a driver has been in 2+ accidents OR is a teen?

Add teens plus 2+ accidents but subtract out the overlap of 6 so you don't count it twice!

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What is the probability that a driver has never been in an accident OR is an adult?

Enter all answers as REDUCED fractions.

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P(no) =

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P(no AND San Marcos) =

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Enter all answers as REDUCED fractions.

Reduce the fraction!

How many numbers are a multiple of both 2 and 3?

Reduce the fraction!

Must meet both requirements. Reduce.

Reduce!

Reduce!

Enter all answers as REDUCED fractions.

What is the probability of randomly choosing a day to go to Chick-fil-a, and it being open?Hint: Chick-fil-a is closed on Sundays.

Each student in a class of 27 gets a raffle ticket. If I pick one raffle ticket, what is the probability that your name will be chosen?

The complement of an event happening is that event NOT happening.

If you add the probability of an event happening + the probability of that event NOT happening, what will they add up to?

Event: shooting a basket and making it.What is the P(E')?

If you select one marble at random, what is P(picking a red marble)

What if we want to find the probability of picking a marble other than blue...What is the complement event of picking a marble other than blue?

Your favorite restaurant is closed the first day of each month. Find the probability of going to the restaurant on any random day in a year and it being open.

Find the probability of picking a letter from the alphabet and getting a vowel.

How many total drivers were there?

How many total drivers had 2+ accidents?

How many total drivers were teens?

How many total drivers were adults over 20?

The probability that a driver picked at random is a teen would be 27/125.What is the probability that a driver picked at random is an adult over 20?Your answer should be a fraction!

What is the probability that a driver picked at random has been in 2+ accidents?Your answer should be a fraction!

P(0 accidents) =Your answer should be a fraction!

P(0 accidents') =Your answer should be a fraction!

What is the probability that a driver has been in 1 accident AND a teen?

What is the probability that a driver has never been in an accident AND is an adult?

What is the probability that a driver has been in 2+ accidents OR is a teen?Add teens plus 2+ accidents but subtract out the overlap of 6 so you don't count it twice!

What is the probability that a driver has been in 2+ accidents OR is a teen?

What is the probability that a driver has never been in an accident OR is an adult?

Enter all answers as REDUCED fractions.

P(no) =

P(no AND San Marcos) =

P(yes OR Carlsbad) =

What is the probability of randomly choosing a day to go to Chick-fil-a, and it being open?
Hint: Chick-fil-a is closed on Sundays.

Event: shooting a basket and making it.
What is the P(E')?

What if we want to find the probability of picking a marble other than blue...
What is the complement event of picking a marble other than blue?

The probability that a driver picked at random is a teen would be 27/125.
What is the probability that a driver picked at random is an adult over 20?
Your answer should be a fraction!

What is the probability that a driver picked at random has been in 2+ accidents?
Your answer should be a fraction!

P(0 accidents) =
Your answer should be a fraction!

P(0 accidents') =
Your answer should be a fraction!

What is the probability that a driver has been in 2+ accidents OR is a teen?

Add teens plus 2+ accidents but subtract out the overlap of 6 so you don't count it twice!