Answer all items:   Consider the experiment of tossing a coin four times. The outcome is a sequence of heads and tails. Determine the sample space. Enumerate all outcomes. Let Y be a random variable that counts the number of tails for the four tosses. What are possible values of Y? Construct a probability distribution of the random variable Y using tabular form. Construct a probability distribution of the random variable Y using bar graph. Calculate the expected value of Y.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter12: Angle Relationships And Transformations
Section: Chapter Questions
Problem 9CP
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Answer all items:

 

Consider the experiment of tossing a coin four times. The outcome is a sequence of heads and tails.

  1. Determine the sample space. Enumerate all outcomes.
  2. Let Y be a random variable that counts the number of tails for the four tosses. What are possible values of Y?
  3. Construct a probability distribution of the random variable Y using tabular form.
  4. Construct a probability distribution of the random variable Y using bar graph.
  5. Calculate the expected value of Y.
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