Chapter 4: Rational Numbers: Positive and Negative Fractions
Numbers in the Real World


Probable Pizza

Probability is basically the chance of an event occurring.  If there are 3 red balls and 2 blue balls in a bag, the probability of
your selecting a red ball (without looking in the bag) is 3/5.  Likewise, the probability of selecting a non-red ball is 2/5.
 
What is the probability of getting heads when flipping a nickel?
Of getting tails?

What is the sum of the two probabilities?

What is the probability of rolling a 3 with a single die?
Of rolling a 4?
What is the sum of the two probabilities?

What is the probability of selecting a letter of the alphabel and getting a vowel?
What is the probability of picking a Jack from a standard deck of cards?
 

Your small study group from your math class decides to order pizza on Friday.  You will need 1 large pizza to feed the
group.  Below are the toppings available.  The class decides to order a pizza with 2 different toppings: 1 meat and 1 veg.

Meats:  Canadian Bacon, Pepperoni, Italian Sausage
Vegetables:  Red Onions, Green Peppers, Mushrooms, Olives, Jalapeno Peppers

If your favorite meat topping is Canadian Bacon, what is the probability that you get your preference?
 
If you do not like green peppers or mushrooms, what is the probability that those toppings are not on the pizza?
 
If your favorite pizza topping combination is Italian Sausage and Red Onions, what is the probability that it is selected?
What is the probability that it is not selected?

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