Probability Intersection TI-84 | TI-83 Example

Joestat wants you to calculate the probability that Bob favorite drink is Diet and Pepsi?  This is also known as an intersection between diet and Pepsi.

Probability Intersection Diagram

Results from the Favorite Beverage Survey from Bob’s Class

Pepsi Coke Other
Diet 35 30 25
Regular 40 50 20

 

Solution:
First, add totals to the table:

Results from the Favorite Beverage Survey from Bob’s Class

Pepsi Coke Other Total
Diet 35 30 25 90
Regular 40 50 20 110
Total 75 80 45 200

 

Second, use the Probability Intersection Formula:
P(A and B)
P(Pepsi and Diet)
Intersection Problem Notaiton frac{35}{200}

| [  3 ] | [ 5 ] | [ / ] | [ 2 ] | [ 0 ] | [ 0] | [Enter] |

probability union ti-84 or ti-83

Congratulations, you have successfully completed the Probability Intersection TI-84 | TI-83 example problem.
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Last Modified on September 7, 2013 by JoeStat

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