Exercise 24 Page 930

When calculating the experimental probability, we are comparing the number of times the event occurs to the number of times the experiment is done. P=Times the Event Occurs/Times the Experiment Is Done

This is very similar to the Probability Formula. In a standard deck of cards, there are 52 cards. This is also the number of times the experiment is done.

Out of 52 cards, 26 cards are red, which is the number of times the event occurs. Now, we have enough information to calculate P(Red).

P=Times the Event Occurs/Times the Experiment Is Done

SubstituteValues

Substitute values

P(Red)=26/52

ReduceFrac

a/b=.a /26./.b /26.

P(Red)=1/2

▼

Convert to percent

CalcQuot

Calculate quotient

P(Red)=0.5

WritePercent

Convert to percent

P(Red)=50 %

The probability of choosing a red card is equal to 12, which can also be written as 50 %.