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Anna and her friends were always asking each other "What do you want to do today?"...

Anna and her friends were always asking each other "What do you want to do today?" They were tired of wasting time and decided on a method to decide randomly. On Mondays, Wednesdays, and Fridays they would get together in the afternoon. Anna created a spinner that was divided into three equal sections and labeled them soccer, basketball, and lacrosse. At the beginning of each week they spun the spinner three times to make the decisions for them. A.) What is the probability that in a given week they will play lacrosse three times? B.) What is the probability they will play lacrosse at least once during the week? C.) What is the probability they won't play lacrosse at all (during a given week)?

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Answer #1

Probability of playing lacrosse=1/3 and they get together 3 times a week

Hence n=3,p=1/3, and we use a binomial distribution

  

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