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Glencoe Math: Course 2, Volume 2

GM

Glencoe Math: Course 2, Volume 2 View details

2. Theoretical and Experimental Probability

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Exercise 14 Page 728

Use the experimental probability.

H

Practice makes perfect

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 We know that J.R. tossed a coin 100 times. This means that 100 is the number of times the experiment is done. Let's take a look at the graph to identify the number of tails tossed in this experiment.

bar chart

Out of 100 tosses, 60 are tails, which is the number of times the event occurs. Now we have enough information to calculate P(tails).

P=Favorable Outcomes/Possible Outcomes

SubstituteValues

Substitute values

P(tails)=60/100

a/b=.a /20./.b /20.

P(tails)=60/20/100/20

Calculate quotient

P(tails)=3/5

The probability of choosing a blue sock is 35, which corresponds to option H.

Subchapter links

Guided Practice p.724

Independent Practice p.725-726

H.O.T. Problems p.726

Standardized Test Practice p.726-728

Extra Practice p.727

Common Core Review p.728