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October 22, 2014

October 22, 2014

Posted by **may ann** on Friday, June 6, 2014 at 9:39pm.

outcome: red blue green yellow

frequency:10 5 13 7

Use the results of this experiment to find each probability. Write each answer as a fraction in lowest terms.

a. Find the experimental probability that the next marble he chooses is yellow.

b. Find the experimental probability that the next marble he chooses is either blue or red.

- math help -
**MathMate**, Saturday, June 7, 2014 at 9:09amExperimental probability

=(observed frequency)/size of sample space

which leads to

P(red)=10/35=2/7

P(blue)=5/35=1/7

... etc

also, since these probabilities are complementary, we can conclude that P(blue or red)=P(blue)+P(red)

Try to work out the numbers and post for checking if you wish.

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