# week4lab_answers_word - Math 221 Week 4 Lab Submitted by...

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Math 221 Week 4 Lab Submitted by: Carlyle Brown Part 1. Cross-Reference Tables and Probability 1. What is the probability that the cereal would be high calorie? In other words, what is P (high calorie)? 53/84 = 0.630952381 2. What is the probability that the cereal would be high fiber? In other words, what is P (high fiber)? 22/84 = 0.261904762 3. What is the probability that a cereal would both high calorie and high fiber? In other words, what is P (high calorie and high fiber)? 18/84 = 0.214285714 4. What is the probability that a cereal would either high calorie or high fiber? In other words, what is P (high calorie or high fiber)? (53+ 22 – 18) /84 = 0. 0.678571429 5. What is the probability that a cereal would be high calorie, given that it is high fiber? In other words, what is P (high calorie, given high fiber)? 18/22 = 0.82 6. What is the probability that a cereal would be high calorie, given that is low fiber? In other words, what is P (high calorie, given low fiber)? 12/33 = .36 7. Regarding Questions 5 and 6, how might you interpret this information as a consumer? 82% of High Fiber Cereal is High Calorie & 36% of Low Fiber Cereal is High Calorie

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week4lab_answers_word - Math 221 Week 4 Lab Submitted by...

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